alaynatorres434 alaynatorres434

20-08-2020
Mathematics

contestada

So I need help. If DE=4x+10,EF=2x-1,and DF=9x-15 find DF?????

Respuesta :

tomson1975 tomson1975

24-08-2020

Greetings from Brasil....

Looking at the figure we can say that:

DF = DE + EF

and

DF = 9X - 15

DE = 4X + 10

EF = 2X - 1

So

DF = DE + EF

9X - 15 = (4X + 10) + (2X - 1)

X = 8 and

DF = 9X - 15

DF = 57

Ver imagen tomson1975

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