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 two ratios and set the products equal to each other.

Front

If 50 apples cost $25.00, what is the cost of 1 apple?

Back

$0.50

Front

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

Back

40 miles per hour.

Front

What is the formula to find the unit rate?

Back

Unit Rate = Total Amount / Number of Units.

Front

If 4 big water bottles hold 8 gallons, how much does 1 big water bottle hold?

Back

2 gallons.

Front

If Josh bought a pizza with 8 slices for $12, what is the cost of 4 slices?

Back

$6.00.

Front

If there are 5 ice cream cones for every 3 brownies, what is the ratio of ice cream cones to brownies?

Back

5:3.

Front

How do you find the total cost of multiple items at a unit price?

Back

Total Cost = Unit Price x Number of Items.

Front

If 3 big water bottles hold 6 gallons, how much does each bottle hold?

Back

2 gallons.