Sunday, November 1, 2009

%%%%% Jeric's Rate Growing Post

Definition:

Ratio: is where you compare two quantities measured in the same unit
Rate: is where you compare two quantities measured in different units

The difference between rate and ratio is that rate compares things from different units like comparing Canadian money to dirty American money and ratio compares things from the same unit like black bears to brown bears.

4.Determine the unit rate in each situation.

a) An orca swims 110 km in 2h.
First divide 110km by 2 to get 55 and you divide 2h by 2 to get 1. So the orca swam 55km/h

b)A Canada goose flies 800 km in 12.5h.
First you divide 800 by 12.5 to get 64 and you divide 12.5 by 12.5 to get 1. So the goose flew 64km/h The goose flew 64km/h

c) Cathy plants 45 daffodils in 30 min.
First you divide 45 by 30 to get 1.5 and you divide 30 by 30 to get 1. So 1 daffodils were planted in 1 min. 1daffodils/min

10.Trevor rode his mountain bike 84 km in 3h. Jillian rode 70 km in 2.5h. Who is the faster cyclist? How do you know ?
Trevor and Jillian are both equal speeds, because when you bring both their km and hours to the unit rate, they both equal 28km/h.

Coin Rate:

How many pennies would there be in 2 jars.

If there were 1000 pennies combined in 2 jars you would just need to find the unit rate ( divide each number by 6 ) and then you would get your answer. So there are 500pennies/jar

1) What would the recipe look like if it had to serve 10 people? Show your calculations.
The recipe would probably look like everything was double digits.

1/2 lb of ground beef 0.5 x 2.5 = 1.25
1 medium onion diced 1 x 2.5 = 2.5
1 celery finely diced 1 x 2.5=2.5
1 clove garlic 1 x 2.5 = 2.5
14oz can of tomatoes chopped 14 x 2.5= 35
1/2 of tomato paste 0.5 x 2.5 =1.25
1tsp parsley 1 x 2.5= 2.5
1 1/2 tsp basil 1.5 x 2.5= 3.75
1 tsp oregano 1 x 2.5 = 2.5
1 tsp sugar 1 x 2.5 = 2.5
1/2 worchestershire sauce 0.5 x 2.5= 1.25
1/2 tsp seasoning salt 0.5 x 2.5 = 1.25
1 bay leaf 1 x 2.5 = 2.5
2) What would the recipe look like if you had to only serve 1 person? Show your calculations.
The recipe would probably look like a recipe with lots of small numbers and decimal points.

1/2 lb of ground beef 0.5 / 4 = 0.125
1 medium onion diced 1 / 4 = 0.25
1 celery finely diced 1 / 4 = 0.25
1 clove garlic 1 / 4 = 0.25
14oz can of tomatoes chopped 14 / 4 = 3.5
1/2 of tomato paste 0.5 / 4 =0.125
1tsp parsley 1 / 4 = 0.25
1 1/2 tsp basil 1.5 / 4 = 0.375
1 tsp oregano 1 / 4 = 0.25
1 tsp sugar 1 / 4 = 0.25
1/2 worchestershire sauce 0.5 / 4 = 0.125
1/2 tsp seasoning salt 0.5 / 4 = 0.125
1 bay leaf 1 / 4 = 0.25

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