Class Activity

Front

Simplify the ratio 4:6.

Back

2:3

Front

What is the ratio of hearts to diamonds if there are 9 hearts and 5 diamonds?

Back

9 to 5

Front

If 600 students were surveyed, how many chose History as their favorite subject if 125 chose it?

Back

125

Front

Solve the proportion: 15/3 = k/5.

Back

k=5

Front

Find the unit rate: 120 miles in 2 hours.

Back

60 miles per hour

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

How do you simplify a ratio?

Back

Divide both terms of the ratio by their greatest common divisor.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is 1.

Front

If a car travels 240 miles in 3 hours, what is its speed in miles per hour?

Back

80 miles per hour

Front

What does it mean to solve a proportion?

Back

To find the value of a variable that makes two ratios equal.