Solve the problem.
-Dema's truck gets 32 mpg on the highway and 18 mpg in the city. The amount of gas he uses A (in gal) is given by $$A = \frac { 1 } { 18 } c + \frac { 1 } { 32 } h$$ , where c is the number of city miles driven and h is the number of
Highway miles driven. If Dema drove 45 mi in the city and used 8 gal of gas, how many highway
Miles did he drive?
A) 176 miles
B) 192 miles
C) 200 miles
D) 160 miles

Question

Quizplus · Accepted Answer

If Dema drove 45 mi in the city and used 8 gal of gas, then 8 = 1/18 * 45 + 1/32 * h. Solving for h gives h = 192.

Solve the Problem A=118c+132hA = \frac { 1 } { 18 } c + \frac { 1 } { 32 } hA=181​c+321​h

Solve the Problem $A = \frac { 1 } { 18 } c + \frac { 1 } { 32 } h$