rate - compares 2 quantities measured in different units.
rate compares 2 quantities measured in different units while ratio compares 2 quantities in the same units
pg.60.#3)
a) Give two examples of rates that are common in every day life. Share your examples with a classmate.
6 periods of school a day 5 days a week.
b) What units measure each of the rates in part a)?
periods and school. days and weeks.
c) Explain why a rate cannot be expressed as a percent.
Because a rate has two different quantities. No whole.
pg.61. #10) 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?
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PART TWO.
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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 = 2.5stalk 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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