Devin's bob2

The mistakes I made on my test was I didn't check my answers correctly another mistake was I didn't explain my answers properly.

The two questions I had trouble with is question 15 and 16, In question 15 you had to write the ratio's in lowest terms?The second question was,You have a bag with one white ball,six red balls,eight green balls,and three purple balls in lowest terms,what is the ratio of red balls to the whole bag of balls?

What I can do in the future for my test are working harder,studying a bit more,and reading the questions carefully.

sorry its late.

Bob 2

Matthew Bob



http://www.flickr.com/photos/smigol/2645654371/

Part to Part Ratios
Green:Red
7:7

Blue:yellow
1:5

Red:Yellow
7:5

Three-Part Ratios


Blues to Yellows to Greens
1:2:5

Reds:Blue:Yellows
3:5:2

Part-To-Total Ratios
1.Greens to total
7: 27
2.Blues to total
1:27

1.If the ratio '1:2' changed to '2:2' what would the percent be?
2.What is the percent for '1:27' (Blues to Total)
3.What is the Decimal for '7:5' (Reds to Yellows)

Elona's BOB for October 29, 2009

MISTAKES

My first mistake is not showing my work.
My second mistake is not understanding the questions properly.
My third mistake is little studying.

QUESTIONS THAT WERE DIFFICULT FOR ME

In a group of 84 students surveyed, the ratio of student preference is 7 oatmeal eaters to 4 granola eaters to 3 toasted O eaters. Of the 84 students, how many prefer oatmeal and how many preferred granola?

Use the data in the table below to determine which sports teams have equivalent scored by to scored against ratios.

Team. Scored By Scored Against
Baseball Team A 10 8
Basketball Team A 115 92
Hocley Team A 6 4

WHAT TO DO IN THE FUTURE TEST
Study.
Show my work
Study.

BOB2
A normal deck of playing cards has 52 cards in four suits. (clubs, diamonds, hearts and spades.) of 13 cards each. Two of the suits are black, and two of the suits are red. The ratio of the red cards to the whole deck are:

R/TOTAL = 26/52
R/T = 2/4
answer: 1/2.





*late*

Charis' BOB 2 ratio for october 29 , 2009

MISTAKES

- my first mistake is not reading the questions carefully.
- my second mistake is not showing my work .
- my third mistake is not studying that much that's why i got a low mark.

QUESTIONS THAT WAS DIFFICULT FOR ME

Team Scored by Scored Against

Baseball Team A 20 16
Basketball Team A 230 184
Hockey Team A 12 8

In a group of 84 students surveyed, the ratio of student preference is 7 oatmeal eaters to 4 granola eaters to 3 toasted O eaters. Of the 84 students, how many prefer oatmeal and how many preferred granola?

WHAT TO DO IN THE FUTURE TEST
- study more and harder
- show work
- read the questions carefully


SORRY ITS LATE !

Vanessa's BOB 2 on ratios

Heeey sorry about my late post for BOB2 on ratios but here it is ....

What were some mistakes you did on your tests ?
A mistake that I did on my tests is that i didn't simplify it ( lowest terms ). Another mistake I did on my tests is not showing enough work, so I got less than what i should have gotten.
What I can do to improve my future tests...
I can study hard and read the questions slowly.

Questions...

1) A picture frame has a width to length ratio of 5:7 . If the width of the photo is 9cm, the length of the photo is ?

a) 11cm b) 12.6cm c) 14cm d) 16cm

The other question is just simplifying the ratio.

http://www.flickr.com/photos/laffy4k/404313786/sizes/o/



PART TO PART RATIO

green to blue
3:3

pink to purple
2:1

gold to silver
1:1

PART TO WHOLE

purple to total
1:12

pink to total
2:12

blue to total
3:12

PART TO PART TO PART

green to purple to pink
3:1:2

blue to silver to gold
3:1:1

purple to blue to green
1:3:3

The ratio I chose was purple to pink

ratio notation

purple:pink

1:2

fraction
purple/pink
1/2 you don't need to simplify

decimal
0.5

percent

50%

MY QUESTIONS...

What is the ratio for purple to green to total?
What can you do to make the fraction larger than it is right now?
What is equal to the fraction 1/2?

That's my BOB 2... again I apologize for this being late. Comment lots and hope you like my post.

Kathleen's BOB2 Ratio for October 25,2009

MISTAKES.
1. What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.

• First mistake - I didn't simplify the number in the lowest terms .
• Second mistake - I didn't show all my work .

WHAT TO DO IN THE FUTURE TEST

- study hard . - read and answer the question carefully.


QUESTIONS

1) A picture frame has a width to length ratio of 5:7 . If the width of the photo is 9cm, the length of the photo is ?
a) 11cm b) 12.6cm c) 14cm d) 16cm


2) Use the data below to determine which sports teams have equivalent scored by to scored ratios.

Team Scored by Scored Against

Baseball Team A 20 16
Basketball Team A 230 184
Hockey Team A 12 8

Jeric's BOB2 ratio

1. What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.

Well the first mistake I did was not putting the questions in there lowest terms.

The second mistake I did was on the percent with the food.

The third mistake I made was not showing my work on the last question.

I will remember what to do in the future tests by reading the question and taking some time to understand it so I could get the correct answer.

2. Rewrite 2 questions that gave you difficulty with different numbers.

Team Scored By Scored Against
Baseball Team A 20 16
Basketball Team A 230 184
Hockey Team A 12 8

A picture frame has a width to length ratio of 10:14. If the width is 18 cm, the length of the photo is
A. 22 cm B. 25.2 cm C. 28 cm D. 32 cm

Michelle's BOB2 Ratio for October 25, 2009

1. Some of the mistakes I made on my test:

On one of the questions I wasn't sure if I should answer it in lowest terms. It didn't say to, so I just put 2:4. Next time I will remember, that the best answer is in lowest terms if there is a choice for it.

The question with 84 students, and finding out the percent, I got mixed up there. I didn't know how to get the percent. But some how on the calculator I ended up pressing numbers to find out the "percent." Since it said to round to one decimal place, I thought I had gotten the right number because I could round18. 4444 etc ( or something like that.) I know now that when you want to find the percent you can just compare the fractions, then divide the fraction to get the decimal.

Also in another question where you had to compare which two teams had the same amount of wins and lost, I didn't show my work because it didn't say to, or I forgot that the teacher said showing your work will give you the marks. I just put 5:4 and a sentence saying they were equivalent to each other. For the next text, I will try to show my work so I can earn those marks.


The questions that gave me difficulty were :

In a group of 84 students surveyed, the ratio of student preference is 7 oatmeal eaters to 4 granola eaters to 3 toasted O eaters. Of the 84 students, how many prefer oatmeal and how many preferred granola?
I got this question right, but in order for you to answer the question, you had to find what number THAT will get you to 84 if you times THAT number by all the " different eaters." Then add it up, and it should give you 84.

A stable has 39 passengers on it as it starts its run. At the first stop 12 passengers get off and 18 passengers get on. What is the ratio of the number of passengers who were on the train when it left the first station? Express your answer in lowest terms.
a) 2:3 b) 13:15 c) 18:12 d) 27:39
This question was hard for me, because the way they put the question got me very confused. I had to read it over and over until I finally found an answer that was on one of the choices. ( I got it right. ) I had to add and subtract numbers, then eventually I had divide to find the lowest terms.

Princess' Ratio BOB for October 20, 2009

http://www.flickr.com/photos/laffy4k/404313786/sizes/o/

Part to Part Ratio :

1. purple to green

purple : green

1 : 3

2. gold to silver

gold : silver

1 : 1

3. pink to blue

pink : blue

2 : 3

Part to Whole :

1. blue to total

blue : total

3 : 12

2. pink to total

pink : total

2 : 12

Part to Part to Part :

1. gold to green to silver

glod : green : silver

1 : 3 : 1

2. blue to pink to orange

blue : pink : orange

3 : 2 : 1

The ration I chose was pink to blue .

Ratio Notation :

pink : blue

2 : 3

Fraction :

pink/blue

2/3 = 4/6. You multiply the numerator and the denominator by 2 and you get 4/6.

Decimal :

0.66

Percent :

66.66 %

My 3 Questions :

What is the ratio for blue to pink to total ?

What could the fraction 1/2 represent in this picture ?

What could the ratio 2 : 1 represent ?

Part 2:

3. A normal deck of playing cards has 52 cards in four suits (clubs, diamonds, hearts, spades) of 13 cards each. Two of the suits are black and two of the suits are red. The ratio of red cards to the whole deck is ...

mistake : 2:4

right answer : 1:2

5. Erci is able to stop 85 % of the shots on goal. If he faces 27 shots on goal, how many goals would likely be scored on him ?

mistake : 15

right answer : 4

In a group of 84 students surveyed, the ratio of student preference is seven oatmeal eaters to four granola eaters to three toasted 0 eaters.

14. What percent (to one decimalplace) of the group prefers toasted 0's ?

mistake : 18.7 %

right answer : 21.1 %

16. You have a bag with one white ball, six red balls, eight green balls, and three purple balls. In lowest terms, what is the ratio of red balls to the whole bag of balls ?

mistake : 6/8 = 1/3

right answer : 6/8 = 1/3 red balls : whole bag of balls

In the future I should read the questions clearly so that I'll see that I need the answers to be in lowest terms.

Next time I should pay attention to my ratio table so that I won't make any mistakes on my answers.

Next time when I'm trying to find a percent i should double check my ratio table to see if its correct.

2 Questions :

Alex is able to stop 65 % of the shots on goal. If he faces 36 shots on goal, how many goals would likely be scored on him ?

In a group of 75 students surveyed, the ratio of student preference is five oatmeal eaters to eight granola eaters to two toasted 0 eaters.

What percent (to one decimal place) of the group prefers toasted 0's ?

Jose's BOB.Ratio for October 20, 2009

http://www.flickr.com/photos/dmal/29775480134/


Part to part:

Peach to Orange - 1 : 2

Green to Light green - 1 : 1


White to Blue - 1 : 4



Part to WHOLE:

Yellow to total - 2 : 22


Blue to total - 4 - 22



Part to part to part :

Orange to blue to pink - 2 : 4 : 2


Peach to black to white - 1 : 1 : 1



WRITING THE RATIO IN 4 DIFFERENT WAYS : ( fraction, percent, decimal ratio notation )

The ratio I chose is 1 : 2


FRACTION :

The way you write it in a fraction is that you just put the 1 on the numerator and the 2 on the denominator.

DECIMAL :

All you have to do is divide 1 to 2. So all the line means is to divide the numerator from the denominator. 1 / 2 = 0.5



PERCENTAGE :

To find the percentage you just need to use the decimal form. In this case, the decimal is 0.5. In other words that is 50 so there is your answer. 50 %

RATIO NOTATION :

All ratio notation means is the colon in the ratio. 1 : 2 . The colon between the 1 and 2 is ratio notation.


EQUIVILANT RATIOS :

I will choose the ratio 2 : 22 for this question.


Equivilant ratios for 2 : 22 :

- 1 : 11 ( ÷ 2 )
- 4 : 44 ( x 2 )
- 8 : 88 ( x 4 )

Thats how you simplify 2 : 22 in diffrent ways.


MY QUESTIONS :

1. Why do we use ratios? Explain

2. What is the part to part to part ratio for pink to orange to black ?

3. How do ratios help us in real life?


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Alvin's BOB Ratio for October 20, 2009

_DSC5911-Edit.jpg

http://www.flickr.com/photos/dmal/2975480134/

My 3 Part to Part Ratios :

1) Blue to Yellow - 3:4

2) Red to Pink - 12:5

3) Green to Orange - 6:3

My 2 Part to Whole Ratios :

1) Blue to total 3:33

2) Pink to total 5:33

My 2 Part to Part to Part Ratios :

1) Pink to Blue to Yellow - 5:3:4

2)Green to Orange to Red - 6:3:12

The Ratio I choose is Blue to Yellow :

Ratio Notation - Blue to Yellow is 3:4

Fraction - 3/4

Decimal - 0.75

Percent - 75%

How to make an equivalent Fraction :

Equivalent fraction is like another word for equal fractions. In my diagram here it shows that the original fraction the numerator is 3 and I multiplyed it by 2 to get 6, so whatever you do to the numerator you HAVE to do the same to the denomenator so I multiplyed the denomenator and I got 8 because the original was 4.

Equivalent fraction is like another word for equal fractions. In my diagram here it shows that the original fraction the numerator is 4 and I divided it by 2 to get 2, so whatever you do to the numerator you HAVE to do the same to the denomenator so I divided by 2 the denomenator and I got 3 because the original was 6.

PROBLEMS !! :

1) What would the decimal, Fraction and percent be for yellow to blue ratio ?

2) What would the Orange to White to Black ratio be ?

3) Write the ratio for Orange to total then write it in lowest terms.

Some mistakes I got wrong on MY test were :

1) I forgot to write the answer in the lowest terms.

2) I didnt show my work.

3) I didnt get the write percentage.

Examples and my mistakes :

1) For question 3 I put D which was 2:4 which was wrong because I didnt do it in lowest terms, the answer was B 1:2.

2) For questions 17 and 18 I just wrote down the answer, I didnt show my work like how I got the answers.

3) For question 14 the way i got the percent was totally wrong the right way was alot more different.

How I can remember in Future Tests :

1) I can remember writing in the lowest terms by reasding the question more carefully.

2) I can remember showing my work by instead of doing my work on a scarp piece of paper I can just do it on my test paper.

3)For getting the percent I would use a ratio table to get the correct percent.

Problems :

1) In a student election Carol gets 40% of the votes. If there were 525 votes cast, how many votes did Carol get ?

2) 5 students were running for student council president. Of 100 students polled, 50 chose mike, 9 chose Patricia, 24 chose Brian, and the rest chose Karen. What is the ratio of votes for boys to girls in the student council election ? Express the raio in lowest terms.

1) 74:26 2) 37:13 3) 75:46 4)6:7

Kamille's BOB Ratio For October 20th,2009

Crayon Lineup

http://www.flickr.com/photos/laffy4k/404313786/sizes/o/

Part to Part Ratio :

Blue : Green -
3 : 3

Silver : Orange -
1 : 1

Gold : Pink -
1 : 2

Part to Whole Ratio :

Pink : Whole -
2 : 12

Blue : Whole -
3 : 12


Part to Part to Part Ratio :

Blue : Pink : Orange -
3 : 2 : 1

Gold : Green : Silver -
1 : 3 : 1


Write 3 ways of a ratio -

I picked the colours Pink and Green as a fraction, decimal and a percent.

Fraction - 1/4 Decimal - 0.25 % Percent - 25 %


How to make Equivalent Fractions :

A equivalent fraction is written in two ways which is lowest terms or higher terms.
To get a lower term you have to divide the numbers by any same number that will divide by both the same numbers you are using. To get a higher term you have to multiply by any number. Remember that what ever you do to the bottom or the top you have to do to all. .. Example ----- >


Questions :

1) What is the ratio for gold, silver, and orange ?

2) What is the difference between the part to part and the part to total ratio ?

3) Could you simplify 76:11 ?? Yes and how or No and explain why not ?


Please comment and good luck to all on the test tomorrow !! thank you =)


PART 2 !


Some of the mistakes I got were :

1) Always forgetting to put it in lowest terms.
2) I didn't show all of my work.
3) I didn't read the question properly

Examples :

4. Four students are running for student council president. Of 30 students polled, 15 chose Mike, 3 chose Patricia, 6 chose Brian, and the rest chose Karen. What is the ratio of votes for girls to votes for boys in the student council election? Express the ratio in lowest terms.

Mistake : b. 7 : 3
Answer : a. 3 : 7


6. A stable has 39 horses available for trail rides. Of these horses, 26 are all brown, 8 are mainly white, and the rest are black. Express in lowest terms the ratio of brown horses to mainly white horses to black horses.

Mistake : b. 13 : 4 : 5

Answer : c. 18 : 12


For The Future Tests :

I will study harder. Learn how to read questions better by read the question over and over and see if the answer is that i want it to be. Make sure ever thing is in lowest terms. And I will make sure I show all my work when it says so.

2 questions that gave me difficulty were :

A rapid transit has 39 passengers on it as it starts its run. At the first stop 12 passengers get off and 18 passengers get on. What is the ratio of the number of passengers who were on the train as it arrived in the first station to the number who were on the train when it left the first station? Express your answer in lowest terms.
a. 2 : 3 b. 13 : 15 c. 18 : 2 d. 27 : 39


This question was hard for me because i didn't really understand it in the beginning so i had to read it a couple of times, but i did get the question right by adding and subtracting the numbers then i had to put it to the lowest terms.

In a group of 84 students surveyed, the ratio of student preference is seven oatmeal eaters to four granola eaters to three toasted O eaters.
Of the 84 students how many prefer oatmeal ?

This question and the others just like it gave a hard time as well because it didn't add up to 84 all together and so i didnt know how to get it, but now i do. What you have to do is add up 7, 4, and 3 which is 14 then you have to multiply by 6 to get 84. So you have to multiply 7 4 and 3 which is now turned into 42 24 and 18. Now that added up to 84 and that's how you get the answer.

Bob Emmanuel Ratio

http://www.flickr.com/photos/laffy4k/404313786/sizes/o/

These are my 3 part to part ratios:

Green to Pink
3:2

Blue to Purple
3:1

Silver to Orange
1:1

Here are my 2 part to whole ratios:

Gold to Total
1:12

Green to Total
3:12

My two 3 part ratios

Blue to Purple to Gold
3:1:1

Green to Silver to Pink
3:1:2

The ratio I have chosen to represent is the Silver to Orange ratio-

Ratio Notation -

Silver to Orange
1:1

Fraction -
1/1

Decimal -
1.00

Percent -
100%

How to make equivalent fractions:
Equivalent fractions are just equal fractions. So to
make an equivalent fractions, whatever you do to one side, you just have to do to the other side. It's that simple!


For example, this picture shows the number of green crayons, to the number of total crayons. So to get an equivalent fraction, i just multiplied both the green and total by 2. You may also divide the two different numbers if you like.


Here are 3 questions you guys could answer:

What is the ratio for mixed coloured crayons to total crayons?

What would the percent be, for blue crayons to green crayons?

What would the decimal be, for pink crayons to total crayons?

BOB CONTINUED

Some mistakes i made on my test, was not taking the time to read the questions properly, or to take the time to find more or better answers.

Here is an example of my mistake:

15. Write each ratio in lowest terms.

D) 18:27=6:9. That is lower terms, but not the lowest. The lowest terms would be 2:3

I will remember to take more time on tests and not rush every answer. I should have taken more time on each question, then using the first answer i come up with.

Here are some questions that gave me some difficulty to answer:

John is able to stop 35% of the shots on goal. If he faces 16 shots on goal, how many goals would be likely to score on him?

Four students are running for student council president. Of 20 students polled, 8 chose Bob, 3 chose Gail, 2 chose Will, and the rest chose Kate. What is the ratio of votes for girl to votes for boys in the student council election? Express the ratio in lowest terms.

Harvey's BOB ratio

http://www.flickr.com/photos/dmal/2975480134/

BOB about Ratios

Part to Part Ratios
Yellow to Gray--------------2:3
Orange to Green------------2:2
Pink to Blue-----------------1:4

Part to Total Ratios
Yellow to Total-------------2:22
Orange to Total------------2:22
Blue to Total---------------4:22

Three Part Ratios
Yellow to Green to Pink----2:2:1
Gray to Orange to Blue----3:2:4

How to write a ratio 3 other ways

I'll use My Pink to Blue Ratio. (1:4)

There are 3 other ways to write a ratio. As a fraction, decimal, and a percent.

Fraction
To write 1:4 as a fraction, all you have to do is put the number on the left side of the ratio on the top (numerator) and the one on the right on the bottom (denominator)


Decimal
Now, to write the ratio 1:4 as a decimal, you need its fraction form, 1/4. What you basically need to do is divide 1 by 4. You know that line in between the numerator and denominator? That means divide the numbers.

Percent
To make things a lot easier, use the decimal form.
1.00 is the same as 100%. Take away the decimal (pretend you did) and it looks like a 100! So just take away the decimal (always pretend) and you got your answer.

(Blogger has problems uploading my picture)

Ratio Notation
A ratio notation is this: 1:4 the colon in the middle of the numbers. The only thing I know it does is that it shows you that its a ratio.

Equivalent Ratios
Equivalent ratios are what they are, ratios that mean the same thing as the original ratio. An easy way that I know of is to simplify the ratio then multiply it.

I'll be using 2:3 as an example. (Yellow to Gray)

2:3 (Uh Oh, it can't be simplified so we multiply. Remember, what you do on one side you do to the other side.)

2:3 x2
4:6 x2
8:12 x5
40:60 ÷20
2:3

See?

Review:

1) A part to part ratio compares different kinds of groups. T or F?

2) Fractions and part to part ratios are the same. Explain why.

3) Name the probably only mistake you cn make with ratios.

That is all. Good Luck on the test tomorrow!

BOB2
Some things that I got wrong on the test were....

Question 7. I put 2:3 when the acual answer is 18:12.

Question 14. We were supposed to put the percent as a decimal (0.21%) but I just put 21%.

Question 17. All I put as an answer was a word ratio.

Question 18. I put the answer and a little bit of work, but I needed more information so I only got 2/5 for that.


Some Questions..

A rapid transit has 42 passengers on it as it starts to run. At the first stop 16 passengers get off and 9 passengers get on. What is the ratio of the number of passengers who were on the train as it arrived in the first station to the number who were on the train when it left the first station? Express your answer in lowest terms.

In a student election Carol gets 30% of the votes. If there were 975 Votes cast, how many votes did Carol get?

Carla's BOB post for Ratio, Oct. 20, 2009

I chose this picture,




















3 part to part ratios -

Green : Blue
3 : 3

Oranges : Pinks
1 : 2

Purple : Blue
1 : 3

2 part to total ratios -

Purple : Total
1 : 12

Blue : Total
3 : 12

2 three part ratios

Blue : Orange : Pink
3 : 1 : 2

Green : Gold : Silver
3 : 1 : 1

I have to choose a ratio for the next question so I pick Oranges : Pinks (1 : 2). I got the ratio in ratio notation by looking at the picture and counting the colors.
I did this for ...
















The next question says to pick another ratio and I choose Blue : Total (3:12)
Here's how I made equivalent fractions...




















Now I have to make 3 Questions.
1. What is the ratio for Purple & Yellow to Blue?
2. Create a part to part to part ratio including the total.
3. Make a part to part ratio using the colors that start with "s" and "g".

Please comment and answer the questions to help you study for the test tomorrow!


PART 2

What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.

These were my mistakes ...

3. A normal deck of playing cards has 52 cards in four suits ( clubs, diamonds, hearts, and spades) of 13 cards each. Two suits are black and two suits are red. The ratio of red cards to the whole deck is

My Answer - d. 2:4
Right Answer - b. 1:2
( I should have simplified it.)


8. 8. A picture frame has a width to length ratio of 5 : 7. If the width of the photo is 9 cm, the length of the photo is

My Answer - a. 11
Right Answer - b. 12.6

When you figured out how to get to 9, you have to do the same thing with the other number.

Number 15 I didn't simplify the ratio in the lowest terms.

Number 16 I should put the word ratio to get the marks.

Rewrite 2 questions that gave you difficulty with different numbers. Answer the questions correctly in the comments to your blog. Encourage others to participate at your blog by getting them to answer your questions.

Here are the questions!
A normal deck of playing cards have 52 cards and have colors that are half black and half red. If there are 4 suits (clubs, diamonds, hearts, and spades.) What is the ratio of hearts to total?
(sorry if you don't understand it, I made it a little different.)

a) 1:1 b) 1:4 c) 1:5 d) 1:2


9. A picture frame has a width to length ratio of 4:6. If the width of the photo is 8 cm, the length of the photo is what?

Please answer the questions to help you tommorow!