Proportional Reasoning Review

Front

What is the formula to calculate miles per gallon (mpg)?

Back

Miles per Gallon (mpg) = Total Miles Driven / Total Gallons of Gas Used.

Front

If a car drives 200 miles using 18 gallons of gas, what is its mpg?

Back

11 mpg.

Front

What is a scale factor in a scale drawing?

Back

A scale factor is the ratio of a length in the drawing to the corresponding length in the actual object.

Front

If the scale factor is 1:8 and the drawing is 3 inches by 8.5 inches, what is the actual area of the object?

Back

1,632 sq. inches.

Front

How do you find the distance traveled if you know the rate and time?

Back

Distance = Rate x Time.

Front

If Kesha drives 36 miles in 48 minutes, how far does she drive in 12 minutes?

Back

9 miles.

Front

What is 18 percent of a number?

Back

To find 18 percent of a number, multiply the number by 0.18.

Front

What is 18 percent of 20?

Back

3.6.

Front

How do you set up a proportion to solve for an unknown?

Back

Set up a ratio equal to another ratio and cross-multiply to solve.

Front

If Jennifer uses 4 cups of milk for 10 pints of pudding, how much milk is needed for 3 pints?

Back

1.2 cups.