sharnell1 sharnell1
  • 20-09-2020
  • Mathematics
contestada

E is the midpoint of DF. if DE =5x + 4 and DF =78.

E is the midpoint of DF if DE 5x 4 and DF 78 class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 20-09-2020

Answer:

  • x = 7

Step-by-step explanation:

  • Assumed it is asking to find the value of x

Given

  • F is midpoint of DF
  • DE = DF/2
  • DE = 5x + 4
  • DF = 78

Solution

  • 5x + 4 = 78/2
  • 5x + 4 = 39
  • 5x = 35
  • x = 7
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