PART 1

DEFINITION :

- RATIO - measures two different quantities measures in the SAME unit .
- RATE - compares two quantities measured in DIFFERENT unit .

DIFFERENCE :

- The difference between a rate and a ratio is the unit .

QUESTION : PAGE 60

Determine the unit rate in each situation.

a) An orca swims 110 km in 2 h.

- 55km/h

- 64km/h

- 2daffodils/minutes

PAGE 61

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

COIN QUESTION :

How many dimes would there be in 2 jar ?

If there were 2600 dimes in 2 jars , how many would there be in one ?

(make a ratio table) find the UNIT RATE .

dimes|jar

divide by 2 2600 | 2 divide by 2

1300 | 1

So the UNIT RATE would be , 1300dimes/jar .

PART 2

1) What would the recipe look like if it had to serve 10 people ? Show your calculations.

- 10/4 = 2.5

- ground beef - 0.5 x 2.5 = 1.25 lb
- medium onion, diced - 1 x 2.5 = 2.5
- stalk celery finely diced - 1 x 2.5 = 2.5
- clove garlic, minced - 1 x 2.5 = 2.5
- canned tomatoes, chopped - 14 x 2.5 = 35 oz
- can tomato paste - 0.5 x 2.5 = 1.25
- parsley - 1 x 2.5 = 2.5 tsp
- basil - 1.5 x 2.5 = 3.75 tsp
- oregano - 1 x 2.5 = 2.5 tsp
- sugar - 1 x 2.5 = 2.5 tsp
- Worcestershire Sauce - 0.5 x 2.5 = 1.25 tsp
- seasoning salt - 0.5 x 2.5 = 1.25 tsp
- 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 .

- 10÷1 = 10

- ground beef - 1.25 ÷ 10 = 0.125 lb
- medium onion, diced - 2.5 ÷ 10 = 0.25
- stalk celery finely diced - 2.5 ÷ 10 = 0.25
- clove garlic, minced - 2.5 ÷ 10 = 0.25
- canned tomatoes, chopped - 35 ÷ 10 = 3.5 oz
- can tomato paste - 1.25 ÷ 10 = 0.125
- parsley - 2.5 ÷ 10 = 0.25 tsp
- basil - 3.75 ÷ 10 = 0.375 tsp
- oregano - 2.5 ÷ 10 = 0.25 tsp
- sugar - 2.5 ÷ 10 = 0.25 tsp
- Worcestershire Sauce - 1.25 ÷ 10 = 0.125 tsp
- seasoning salt - 1.25 ÷ 10 = 0.125 tsp
- bay leaf - 2.5 ÷ 10 = 0.25

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