Question

The area on a wall covered by a rectangular poster is 180 square inches. The length of the

poster is 1.25 times longer than the width of the poster. What are the dimensions of the

poster?

The length of the poster is

The width of the poster is

inches.

inches.

Answer 1

The length of the poster is 15 inches.
The width of the poster is 12 inches


To solve this, you would set the equation as

180=1.25w*w

Divide 1.25 from both sides

144=w^2

Square root both sides

12=w

So the width is equal to 12 inches.

Next multiply that by 1.25 to get the length.

12*1.25=15

So the length equals to 15 inches.

If you multiply 12 by 15, it will result in 180.