Plz help!!
If DF = 170, find the value of x. Then find DE and EF.
2 answers:
Answer
- DE= 3x + 20 = 86
- EF= 2x + 40=84
Step-by-step explanation:
DE: 3x + 20
EF: 2x + 40
DE+ EF= DF
3x+20 +2x + 40 = 170
5x + 60 =170
5x= 110
x= 22
- DE= 3x + 20 = 86
- EF= 2x + 40=84
Answer:
x = 22
DE = 86
EF = 84
Step-by-step explanation:
DF=DE+EF
170= (3x +20) + ( 2x+40)
170 = 5x + 60
5x = 170 - 60
5x = 110
x = 110 / 5
x = 22
DE =3x + 20 = 3(22) + 20 = 66 + 20 = 86
EF= 2x + 40 = 2(22) + 40 = 44 + 40 = 84
I hope I helped you^_^
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