Answer:
30
Step-by-step explanation:
3x+x=4x
40+20=60
180-60=120
120/4=30
We have two equations d=55t and d=20g
The left sides of this equations are the same than the right sides are equal too
a) 55t=20g
b) g=(55/20)t
c) t=6h => g=(55/20) *6 = 165/10=16.5 gallons
d= 55t= 55*6=330 miles or d=20g=20*16.5=330 miles
Good luck!!!
Answer:
It's option D. 8(8x + 9y).