garciaivette685
garciaivette685 garciaivette685
  • 12-12-2020
  • Mathematics
contestada

HELPPPPPP PLEASEEEE!!!!!

HELPPPPPP PLEASEEEE class=

Respuesta :

VanillaCoco
VanillaCoco VanillaCoco
  • 12-12-2020

Answer:

DE = 34

AC = 68

Step-by-step explanation:

since DE are midpoints, you can create this equation: 2(8x + 2) = 20x - 12

solve:

16x + 4 = 20x - 12

16x + 16 = 20x

16 = 4x

4 = x

plug this into both equations to find each side:

DE: 8(4) + 2 = 34

AC: 20(4) - 12 = 68

we know our answer is right because AC is twice as long as DE

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