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im a bit confused
I'd start off by drawing a picture |dw:1449193043364:dw|
L = some unknown length the width is L-6 since the width is 6 less than the length |dw:1449193079843:dw|
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
let me check
how did you get to 68/4? can you tell me what you got for L itself?
i havent went that far im confused on the formula
do you agree with this drawing? |dw:1449193547741:dw|
yeah it makes sense
ok what happens when you add up all the sides?
what expression do you get?
L+L = ???
1 apple + 1 apple = 2 apples 1 L + 1 L = ???
oh 2L i was thinking l was taking place 4 a number
ah I see anyways, what is (L-6) + (L-6) equal to?
= p-12 p= perimeter
I agree with the -12 where did the p come from? we're working with L for now
(L-6) + (L-6) = 2L - 12
oh wait L-12 we arent at permeter yet
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
each side is one L right?
there are 2 sides that are L there are 2 sides that are L-6
ok so how did u get 2 4L
ok so they r seperate right?
so hopefully you see how I'm getting `4L - 12` ??
yeah im up 2 date now
ok so we know that `4L - 12` is the perimeter in terms of L but we also know that 68 is the actual perimeter so we can set up this equation 4L - 12 = 68
ok i can solve from here
4L - 12 = 68 4L =80 20
L = 20 is correct now compute L-6
ok so what do u want me to insert it into the equation
L = 20 L - 6 = 20 - 6 = 14 so the length is 20, the width is 14
ill update u tomorrow if its right
@jim_thompson5910 thx it was right im sending this from the school bathroom right now lol