Question

algebra 2

Answer 1

the length of a rectangle is 3 cm greater than its width. the perimeter is 24 cm. what are the dimensions of the rectangle

Answer 2

@jim_thompson5910

Answer 3

"the length of a rectangle is 3 cm greater than its width" means

L = W+3

Answer 4

perimeter of a rectangle

P = 2*(L+W)
P = 2*(W+3+W) ... replace L with W+3
24 = 2*(W+3+W) ... replace P with 24

solve for W

Answer 5

so its 24=2w + 6 +2w?

Answer 6

keep going

Answer 7

i dont understand

Answer 8

where are you stuck?

Answer 9

24 = 2*(W+3+W) ... replace P with 24

solve for W

Answer 10

So you're not sure how I was able to replace P with 24?

Answer 11

ohhh my bad

Answer 12

I did that because the given perimeter is 24

Answer 13

but i still dont know how to solve it sry

Answer 14

well you distributed properly when you wrote 24=2w + 6 +2w

Answer 15

the next step is to combine like terms on the right side

Answer 16

what would 2w+6+2w simplify to?

Answer 17

4w+6

Answer 18

yes

Answer 19

so 4w+6 = 24

Answer 20

do you see how to proceed from here?

Answer 21

yes

Answer 22

thx