Question

if C(m)= 0.50m+30 represents the cost of renting a car, how many miles were driven if the cost is $130?

Answer 1

200 miles is the answer.

Explanation:

Given relation is : C(m)= 0.50m+30

C(M) = Cost for renting a car

0.50m = Cost per mile driven

30 = Initial cost

M = Miles driven

Now putting 130 in place of c(m)

`130=0.50m+30`

`0.50m=130-30`

`0.50m=100`

`m=(100)/(0.50)=200`

Therefore, if the cost is $130, then 200 miles were driven.

Answer 2

m=#miles
so 130= .5m+30
subtract 30 from each side
100$= .5m than divide .5 to isolate m
m= 200