Question

The length of a rectangle is 3m less than twice its width, and the area of the rectangle is 27m^2 . Find the dimensions of the rectangle.

Answer 1

i already solved once !!

Answer 2

it said it was wrong

Answer 3

let w = width thne length = 2w - 3

the area is

27 = w(2w -3)

so you are solving a quadratic

\[2w^2 - 3w - 27 = 0\]

just solve for w

Answer 4

w=3,9/2

Answer 5

whats the length

Answer 6

well you are almost there

the factored form is

(2w - 9)(w + 3) = 0

measurements can't be zero so only consider the positive solution.

Answer 7

oops measurements can't be negative.... only consider the positive solution.