Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities.

Front

How can ratios be expressed?

Back

Ratios can be expressed in three ways: 1) as a fraction (2/3), 2) with a colon (2:3), and 3) in words (2 to 3).

Front

If Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins, are these prices equivalent?

Back

Yes, the prices are equivalent.

Front

How do you find the unit price from a total cost?

Back

To find the unit price, divide the total cost by the number of items.

Front

What is the unit price of 5 pairs of socks that cost $15?

Back

The unit price is $3 per pair.

Front

If Jose swims 3 laps in 2 minutes, how many laps can he swim in 10 minutes?

Back

He can swim 15 laps in 10 minutes.

Front

How long would it take Jose to swim 27 laps if he swims 3 laps every 2 minutes?

Back

It would take him 18 minutes.

Front

What is the relationship between equivalent ratios?

Back

Equivalent ratios represent the same relationship between quantities, even if the numbers are different.

Front

If a recipe calls for a ratio of 2 cups of flour to 3 cups of sugar, how much sugar is needed for 4 cups of flour?

Back

You would need 6 cups of sugar.

Front

What is the first step in solving a ratio problem?

Back

Identify the quantities being compared and their relationship.