koko4343
koko4343 koko4343
  • 15-05-2019
  • Mathematics
contestada

How do you do this. It does not make since

How do you do this It does not make since class=

Respuesta :

phanneedstohappen
phanneedstohappen phanneedstohappen
  • 15-05-2019

Answer: n=15

Step-by-step explanation:

To find the perimeter, you add all of the side lengths together. This would make the equation 28+28+n+n. You already know the perimeter and are trying to find n. Your new equation is 28+28+n+n=86

You would then combine the like terms and get

56+2n=86

Then you would subtract 56 from both sides and get

2n=30

Finally, you want to divide both sides by 2 in order to get n alone. 30/2 is 15. Therefore,

N=15

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