Set them equal to each other and solve
3x + 39 = 4x +34
-x=-5
X=5
Plug it in
3(5) + 39 = 54
4(5) +34 = 54
For the final angle ,
54 + 54 = 108
180-108 =72
The angle measures are 54,54, and 72
Plug in the 1/2 where the a’s are answer is -3
Answer: 4x4=16-7=9gallons
She will order 9 gallons
Step-by-step explanation:
Answer: 5 7\8
Step-by-step explanation: