Question

Solve the problem. One gallon of a driveway sealant covers an area of 190 ft2. How many gallons of the sealant are needed to cover a 760 ft2 driveway?

Answer 1

This is a proportion question. Do you know how to set up a proportion?

Answer 2

no

Answer 3

when i tried it i got 6

Answer 4

You set up two ratios and set them equal to each other.

Answer 5

You are given one ratio:
1 gallon : 190 ft^2

Answer 6

The other ratio has an unknown. It's the number of gallons. Let's call it x.
x gallons : 760 ft^2

Answer 7

Now you set the two ratios equal. It's easier to understand if you express the ratios as fractions.