Question

The width of a rectangle is 6 in. less than its length. The perimeter is 68 in.

What is the width of the rectangle?

Answer 1

im a bit confused

Answer 2

I'd start off by drawing a picture

Answer 3

L = some unknown length
the width is L-6 since the width is 6 less than the length

Answer 4

to get the perimeter, add up all 4 sides
then set it equal to the given perimeter 68

solve for L and then use it to find L-6

Answer 5

68/4 right?

Answer 6

hello?

Answer 7

let me check

Answer 8

ok

Answer 9

how did you get to 68/4?

can you tell me what you got for L itself?

Answer 10

i havent went that far im confused on the formula

Answer 11

do you agree with this drawing?

Answer 12

yeah it makes sense

Answer 13

ok what happens when you add up all the sides?

Answer 14

what expression do you get?

Answer 15

p-12

Answer 16

L+L = ???

Answer 17

0

Answer 18

1 apple + 1 apple = 2 apples

1 L + 1 L = ???

Answer 19

oh 2L i was thinking l was taking place 4 a number

Answer 20

ah I see

anyways, what is (L-6) + (L-6) equal to?

Answer 21

= p-12 p= perimeter

Answer 22

I agree with the -12

where did the p come from? we're working with L for now

Answer 23

(L-6) + (L-6) = 2L - 12

Answer 24

oh wait L-12 we arent at permeter yet

Answer 25

if you add up ALL four sides, we will get 4L - 12

make sure you understand how I got 4L - 12. If you don't see how I got it, feel free to ask

Answer 26

each side is one L right?

Answer 27

there are 2 sides that are L
there are 2 sides that are L-6