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17 June, 22:44

1. You can do 90 sit-ups in 2 minutes. Your friend can do 135 sit-ups in 3 minutes. Do these rates form a proportion? Explain

2. The ratio of quarters to dimes in a coin collection is 5:3. You add the same number of new quarters as dimes to the collection.

a. Is the ratio of quarters to dimes still 5:3?

b. If so, illustrate with an example. If not, give a counter-example.

3. You are 13 years old, and your cousin is 19 years old. As you grow older, is your age proportional to your cousin's age? Explain your reasoning

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Answers (1)
  1. 17 June, 22:52
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    the answer is s m d 60+20=80
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