xxxjenniferramiresz xxxjenniferramiresz
  • 03-01-2019
  • Mathematics
contestada

if the difference in the side lengths of two squares is 10, and the sum of the side lengths is 18. what are the side of lengths?

Respuesta :

MrsStrong
MrsStrong MrsStrong
  • 11-01-2019

Answer:

14, 4

Step-by-step explanation:

Let's say the square side lengths are x and y. Then x-y=10 and x+y=18. Solve by solving for one variable then substituting into the other equation

x+y=18 so x=18-y

Substitute:

18-y-y=10

18-2y=10

18-18-2y=10-18

-2y=-8

y=4

Substitute y=4 back into the other equation.

x+y=18

x+4=18

x=18-4

x=14

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