Rates and Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How can a ratio be expressed?

Back

A ratio can be expressed in three ways: 1) a:b, 2) a/b, 3) 'a to b'.

Front

What is the ratio of 4 apples to 2 bananas?

Back

The ratio of apples to bananas is 4:2, which simplifies to 2:1.

Front

If a cashier rings up 2 customers in 8 minutes, how many customers can he ring up in 32 minutes?

Back

8 customers.

Front

What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

Back

The ratio of pears to all fruit is 5:11.

Front

Which is the slowest reading rate: 3 pages in 9 minutes, 4 pages in 10 minutes, 5 pages in 13 minutes, or 7 pages in 20 minutes?

Back

3 pages in 9 minutes.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per unit'.

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of units (e.g., price per ounce).

Front

What is the better buy: a 12 ounce can for $1.92 or a 20 ounce can for $3.00?

Back

The 20 ounce can is the better buy.

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, e.g., 1:2 is equivalent to 2:4.