Ratios & Rates Flashcard

Front

What is a ratio?

Back

A comparison of two quantities using division.

Front

How do you calculate the cost per pound?

Back

Divide the total cost by the total weight. For example, $6 for 4 pounds is $6 ÷ 4 = $1.50 per pound.

Front

If Tim earns $50 for 5 hours, what is his rate of pay per hour?

Back

$50 ÷ 5 hours = $10 per hour.

Front

If Jane earns $24 for 2 hours, what is her rate of pay per hour?

Back

$24 ÷ 2 hours = $12 per hour.

Front

What is the ratio of 7 circles to 5 stars?

Back

7:5

Front

How do you compare rates of pay?

Back

Calculate the pay per hour for each person and compare the values.

Front

If Jon can do 64 push-ups in 4 minutes, what is his rate of push-ups per minute?

Back

64 push-ups ÷ 4 minutes = 16 push-ups per minute.

Front

If Paul can do 45 push-ups in 3 minutes, what is his rate of push-ups per minute?

Back

45 push-ups ÷ 3 minutes = 15 push-ups per minute.

Front

Who has a higher rate of push-ups, Jon or Paul?

Back

Jon has a faster rate at 16 push-ups per minute compared to Paul's 15.

Front

What is a rate?

Back

A ratio that compares two different kinds of quantities, often expressed as a quantity per unit of time.