Question

a rectangular table is two times as long as it is wide. If the area is 72 ft ^2, find the length and width of the table

Answer 1

Let w = width
Then, the length L is 2w

Area of a rectangle = L*W
A = (2w)*w

72 = 2 w ^2

Answer 2

Will you do the next step?

Answer 3

to be honest, i'm not sure how but I can try

Answer 4

72=2w^2
72/2=2w^2/2
36=w^2?

Answer 5

Right. Take square roots of both sides.

Remember that in an equation such as x^2 = 4, x = 2 or -2.

Answer 6

okay so then w=18?

Answer 7

Taking half is not the same as square rooting.

Answer 8

oh its 6 isn't it

Answer 9

okay well my name says it all...

Answer 10

@Isuckatmath1 -->6 and -6 but -6 has no meaning in this context.

Answer 11

You are correct in the answer but wrong at sucking in math.

Answer 12

the answer says it's wrong

Answer 13

Area A = L * w
->72 = 2w * w = 2 w^2
-> w^2 = 72/2 = 36
=> w = sqrt ( 36) = 6 ft

Answer 14

Did you include the length = 2 w?

Answer 15

W = 6 and then L =

the length and width of the table

Answer 16

yeah i don't know what I am doing wrong but I have to just post it because I only have 3 mins left to finish. Thank you both for trying to help me though.

Answer 17

Did you post

Answer 18

it says that w = 6 and l = 12

Answer 19

L = 2 w = 12 ft?

Answer 20

that's what we got.

Answer 21

I thought we got 36 and 6

Answer 22

@Directrix, Medal for being consistently patient :P

Answer 23

Isuck, READ, READ, READ................. at least the last sentence!
w (width) = 6

Answer 24

I did read, I am bad at math not stupid...

Answer 25

I don't say this word, I feel you're way too panic, so you overlook the last result!