Find the demensions

Question

Find the demensions

vshiroky · Answer

attachment

stamp · Answer

length L times width W is your area A.

L * W = A

We know length L is 3 more than width W.

L = W + 3

Also, we know area A is 88.

Substitute L = W + 3 into the fact L * W = A, which is L * W = 88.

(W + 3) * W = 88

$$W^2+3W=88$$
Solve for W, and use this value to solve for L = W + 3.

vshiroky · Answer

I'm so lost still and I don't know why. This seems like it should be easy, but it's not

stamp · Answer

$$W^2+3W=88$$Solve for 0:$$W^2+3W-88=0$$Factor and solve:$$(W+11)(W-8)=0$$W = - 11, 8.

Width must be a positive value, so the width is just 8.

W = 8

L = 3 + W
L = 3 + 8
L = 11

(W, L) = (8, 11)

vshiroky · Answer

Ohhh I think I get it.. I hope lol

Thank you!1