Devin's Scribepost For Febuary.3/2010

Hello everyone here are my questions for today.

page 150,151

4.How many hundred grids needed to show each of the following percents?


a.101%-You need 2 grids because each grid represents 100 and since you cant add more squares to your grid you have to make another one for the 1%.

b.589%-You need 6 grids,five for the 500% and 1 grid for the 89%.

c.1450%-You need 15 grids,14 for the 14oo% and 1 grid for the 50%.



11.Express the percent as a fraction and a percent?

a.Kyle scored 95.5% on a practice test.

To turn the percent in a decimal you have to divide the number by 100 like this-
95.5 divided by 100=0.955

Heres the fraction

95.5 191
over =over
1000 200

to get that answer you have to divide the 1000 by 5 and you will get 200 and you do the same for the top.

12.Write your answer to the nearest tenth.

115 of 230
115 divide by 100=1.15

1.15of 230
1.15x230=264.5




1000

How aliens helped Devin using proportion

Two days before the school dance a guy named Devin had to finish his homework to go to it but just when he got stuck on 3 promblems he needed help and he didnt know what to do but just when he was about to give up. A space ship comes from the sky and an alien comes out.Then just when Devin goes outside the alien sayed ''Theres no more oil in the ship will you help me'' and Devin sayed ''sure I will help you but you got too help me with 3 promblems'' the alien sayed ok.

1.What is the ratio of red tiles to titles?Explain your answer in 3 different ways

Answers:part to whole, 4:21

2.Deila was paid $35 for 5 h of babysitting.How much will she recieve in 3 hours?Use unit rate to find your answer.

Answer:she would recieve $21 for 3 hours

3.David can saw a log into three pieces in 7 minutes.If he continues sawing at a constant rate,
how long will it take him to saw a similar log into six pieces?

Answer:David will take 13.8 minutes for 6 pieces.

After Devin gets the answers from the alien the alien for some reason died because he couldnt handle the earths air.

Devin's pay it foward

Part 1



What does pay it foward mean to you?


I think pay it foward means that you cant think about yourself you should think about other people and there promblems.Example if you see somebody that is hurt you should help them or tell a teacher or parent.Another one is if your family or A loved one has a drinking promblem you could incourage them to get better and if you really want them to get better you could pay for there reabilitation.It also could mean after you do something good to that person he or she has to pay it foward.



Part 2


What was your act of kindness?


Ronny,Alex,Kenny and I did A act of kindness.We put left over haloween candy in A ziplock bag and we put a sticky on it that says pay it foward and we put it on people's mailboxes.We choose this activity because we wanted to pay it foward to the people so we put candy in people's mailboxes.We did this yesterday right after school.

















Part 3



Our act of kindness went good we put at least 20 bags in all the mailboxes.We asked the people to pay it fowardby putting a stickyon the bag.I dont really know how the people reacted but they were probably happy that we tryed to pay it foward.

Part 4

The idea of pay it foward is making a difference by helping people with there promblems or giving them gifts or babysitting for free.I think our act of kindness made a difference because we give to the comunity and we asked them to pay it foward.

Devin's scribepost for December.8

Hi everyone here are my questions for today.


1.Which number is a perfect square?
a.14cm2 b.21cm2

c.28cm2 d. 100cm2

Answers:The answer is 100 because the side measures is a whole number.


3. A square has a side length of 7cm what is the area of a square?

a.14cm2 b.21cm2

c.28cm2 d.49cm2

Answers:The answer is 49cm2 because if the side length is 7 and multiply it by 7 it will equal 49.


5.The value of 51 is closest to which whole number?
a.7 b.8

c.49 d.51

Answers:The answer is 49

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.

Devin's Bob Ratio October.20/2009

http://www.flickr.com/photos/27147/3411775886/sizes/l/


Part To Part Ratios:





Yellow To Pink
Yellow : Pink
4 : 4




Blue To Green
Blue : Green
2 : 1




White To Black
White : Black
2 : 1




Part To Whole:




Yellow to Total
Yellow : Total
4 : 43




Blue To Total
Blue : Total
2: 43




2 Part To Part Ratios:

Blue To Green To Yellow
Blue : Green : Yellow
2 : 1 : 4


White To Pink To Black
White : Pink : Black
6 : 4 : 2





The Ratio I choose is black to white:




Black : White
2 : 6




Fraction: 2/6




Decimal: 0.3 repeating




Percent: 33.33%




Questions:




1. How do youturn the decimal into a percent?




2.Can you simplify yellow to pink?




3.How do you turn the fraction into a decimal?

Devin's scribepost september.30,2009 question 11

11.Charles kept a record of his math quiz scores for this term.

a) He wants to make a distorted graph that will show a great improvement in his quiz.Draw such a graph.

Answer:i chose a bar graph.

b)Draw a new graph that diplays the data accurately.

Answer: i chose a line graph.

c)how are the graphs different?

Answer:the line graph is more accurate at overtime graphs

while the bar graph is good at sorting multiple

categories.