Question

can someone who really knows what there doing help me. I'm getting frustrated.
Please everyone i need math help!!!!! show me step by step please? i'm supposed to get 10 and 13?

Please everyone i need math help!!!!! show me step by step please?

I need math help a.s.a.p on perimeter of a rectangle.?

the perimeter of a rectangle is 46 feet. The width is 3ft less than twice the length. Find the length and width of the rectangle.

step by step is appreciated so i can see where i went wrong.

Answer 1

does this help at all?

Answer 2

you have to set up your equation first. what the equation for the perimeter of a rectangle?

Answer 3

i got that part

Answer 4

well if you recall the perimeter of a rectangle is just the sum of all the sides.. so add all of the sides together and solve for L

Answer 5

ok, so p = 2L + 2W

46 = 2L + 2(2L - 3)

Answer 6

so this would give me 46=2L+4L-6?

Answer 7

now, i would use the distributive property to distribute the 2 before the parentheses

Answer 8

yes.

Answer 9

now add like terms

Answer 10

52=6L correct?

Answer 11

8.6

Answer 12

i would round up to 8.7

Answer 13

it doesn't tell me too and my teacher is really strict on that

Answer 14

alright. so now we have our length, and we can add that to the other equation to find the width