The length of...

Question

The length of rectangular picture is 3 times as long as the width. If the area of the picture is 300 square inches, find the length and width of the picture.

 

The length is ___in

The width is ___in

Answer 1

Given: length = 3 * width 

           Area = length * width = 300

 

Then area = 3*width * width = 3 * width ^2 = 300

              So: width ^2 = 100, and then the width = 10 inches, and the length = 30 inches