Question

The area of a rectangle is 864. the width is 2/3 of the length. What is the length

Answer 1

For a rectangle:

`A = w*l`
Since A = 864, and W = 2/3L:

`W = (2)/(3)L`

`864=L* (2)/(3)L`

`864 = (2)/(3)L^(2)`

`1296=L^(2)`

`\sqrt{L^(2)} = L = 36`
Hope that helps! :)