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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