Question

The formula for the perimeter of a rectangle is P = 2l + 2w. Find w if P = 68 and l = 10.

Answer 1

w=24

Answer 2

want me to show you why?

Answer 3

its pretty obvious

Answer 4

plug an chug

Answer 5

its obvious that it isnt obvious to isabella

Answer 6

p = 2l + 2w

68 = 2(10) +2w

68 - 20 = 2w

48 = 2w

w=24

Answer 7

it's easy for you and I.. the goal is to make it that way for her ;)

Answer 8

You don't have to be so darn rude, some people take time to learn something. Sorry I am one of them. But yes, can you please show me how? (:

Answer 9

ok so do you get the first step where we just put in the number for the letters?

Answer 10

i showed u

Answer 11

talk about obvious.. lol obviously she hasn't learned how to perform all those steps

Answer 12

so im gunna teach her =)

Answer 13

yes. i get that part.
68=2*10+2w

Answer 14

ok then multiply 2*10

Answer 15

what do you get?

Answer 16

20

Answer 17

so whats the equation now look like?

Answer 18

68 = 20 - 2w

Answer 19

yep then subtract 20 from both sides