## Sunday, November 1, 2009

### %%%%%'s Rate Growing Post ( Jose )

DEFINITIONS :

Ratio : Ratio is comparing two different quantities / amount measured in the same units.

Rate : Rate is comparing two different quantities / amount measured in different units

The difference between RATE and RATIO is that rate compares in DIFFERENT units, and ratio compares in the SAME units.

Page 60 question 5 :
What is the unit rate in each ?

a.) A blue whale eats 8 t or krill in 2 days.

b.) The cruising speed of a blue whale allows it to travel 193km in 10 hours.

c.) A bull moose bellows 15 times in 2 1/2 hours

a.) 4t / 1 day ( 8 ÷ 2 = 4 2 ÷ 2 = 1 )

b.) 19.3km / 1hour ( I made ratio table. ( 10 ÷ 10 = 1, 193 ÷ 10 = 19.3 )

c.) 6 bellows / 1hour ( Ratio table ( 2.5 hours ÷ 2.5 hours = 1, 15 ÷ 2.5 = 6 )

Page 61 question 10 :

Trevor rode his mountain bike 84 km in 3 hours. Jillian rode 70km in 2.5 hours. Who is the fastest cyclist? How do you know???

Both Trevor and Jillian have the same speed while riding their bikes. I made a ratio table for Trevor so I divided 3 by 3 to get 1, so I did the same too 84 and 84 ÷ 3 = 28. That is 28km/hour.I also made a ratio table for Jillian so I divided 2.5 hours by 2.5 hours too get 1, so whatever you do to one side you do to the other and 70 ÷ 2.5 = 28. 28km/hour.

THEY ARE THE SAME ^^^^

Coin question :
how many pennies would be there in two jars?

if there were 1000 pennies in 2 jars, just find the unit rate. divide each by 6, so 500pennies/jar.

BoB 2

What would recipe look like for the servings of 10 people ? Show work.

First I made a table by: 10 ÷ 4 = 2.5. I multiplied everything by 2.5 ;

ground beef : 0.5 x 2.5 = 1.25

medium onion diced : 1 x 2,5 = 2.5
stalk celery diced : 1 x 2.5 = 2.5

clove garlic minced : 1x 2.5 = 2.5
canned tomatoes : 14 x 2.5 = 35
can tomato paste : 0.5 x 2.5 = 1.25
parsley : 1 x 2.5 = 2.5
basil : 1.5 x 2.5 = 3.75
oregano : 1 x 2.5 = 2.5
sugar : 1 x 2.5 = 2.5

WS : 0.5 x 2.5 = 1.25
seasoning salt : 0.5 x 2.5 = 1.25
bay leaf : 1 x 2.5 = 2.5

What would it look like just for 1 serving ?

First I divide 10 to 1 = 10

ground beef : 1.25 ÷ 10 = 0.125

medium onion diced : 2.5 ÷ 10 = 0.25
stalk celery diced = 2.5 ÷ 10 = 0.25
clove garlic minced = 2.5 ÷ 10 =0.25
canned tomatoes = 35 ÷ 10 = 3.5
can tomato paste = 1.25 ÷ 10 = 0.125
parsley = 2.5 ÷ 10 = 0.25
basil = 3.75 ÷ 10 = 0.375
organo = 2.5 ÷ 10 = 0.25
sugar = 2.5 ÷ 10 = 0.25
WS = 1.25 ÷ 10= 0.125
seasoning salt = 1.25 ÷ 10 = 0.125
bayleaf = 2.5 ÷10 = 0.25

jsoae