7th Grade Milestone Review - Solving Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the unknown variable.

Front

If a car travels 120 miles in 3 hours, what is its speed in miles per hour?

Back

40 miles per hour.

Front

If Jeff ran 6 miles in 4 hours, what is his speed in miles per hour?

Back

1.5 miles per hour.

Front

What is the formula for finding the time taken when distance and speed are known?

Back

Time = Distance ÷ Speed.

Front

If 150 people wait 20 minutes, how long will 240 people wait?

Back

32 minutes.

Front

If a 6-ounce package contains 45 pieces, how many pieces are in a 10-ounce package?

Back

75 pieces.

Front

What is the relationship between distance, speed, and time?

Back

Distance = Speed × Time.

Front

How can you set up a proportion to solve a problem?

Back

Identify two ratios that can be compared and set them equal to each other.

Front

What does it mean if two ratios are equivalent?

Back

It means they represent the same relationship or proportion.