Question

the length of a rectangle is twice its width. the perimeter of the rectanhle i 126 feet

Answer 1

Hi there!

Let the width of the rectangle be called x. Then the length of the rectangle is 2x. We get the following perimeter:

$x + x + 2x + 2x = 126$
Collect the terms

$6x = 126$
Divide by 6

$x = 126 \div 6 = 21$
Therefore, the width of the rectangle is 21 feet and the length is 2 × 21 = 42 feet.