Question

I need answer fast! Thanks!

Answer 1

Answer:

see below

Step-by-step explanation:

The perimeter is the sum of all the sides

A + B+ C+ D + E = 190

x+5  + x+10 + -5(x-20) + 6x-10+ 2x+4(20-x) = 190

Distribute

x+5 + x+10 -5x+100 +6x-10 +2x +80 -4x = 190

Combine like terms

x + x -5x-4x+6x +2x +80+10+100 -10+5  = 190

x +185 = 190

Subtract 185 from each side

x+185-185 = 190-185

x = 5

Side A = x+5 =5+5 =10

Side B = x+10 = 5+10 =15

Side C = -5(x-20) = -5(5-20) = -5(-15) = 75

Side D = 6x-10 = 6(5) -10 =30-10 = 20

Side E = 2x+4(20-x) = 2*5 +4(20-5) = 10+4(15) = 70