176k views
24 votes
Cole's Computer Company charges $50 for a service call to your home to repair your computer system, and he charges $12 per hour, h, for labor for any repair. Cole uses this formula to calculate the total cost, t.

50 + 12h = t


Mr. Greene paid Cole a total of $86 for a repair. How many hours did it take to finish the job?


Group of answer choices


a. 3


b. 7


c. 5


d. 4

User JohnnyQ
by
6.5k points

2 Answers

12 votes

Answer:

3 hours

Explanation:

50 + 12h = 86

12h = 36

h = 3

User VinsanityL
by
6.7k points
8 votes

Answer:

3 hours

Explanation:

50+12h=86

-50 on both sides

12h=36

divide by 12 on both sides

h=3

User Konstantin Lyakh
by
6.9k points
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