Grayson's Garage charges $40 per hour to do car repairs plus the cost of the parts.

a. Write an equation to model this situation using h to represent the number of hours the repairs take, p to represent the costs of the parts and, c to represent the total cost of the repairs.

b. What will the cost of the repairs be if the parts cost $165 and it takes 3 hours to do the repairs? Show your work and label.

Question

Gunnar Frank

Mathematics

13 December, 15:26

Grayson's Garage charges $40 per hour to do car repairs plus the cost of the parts.

a. Write an equation to model this situation using h to represent the number of hours the repairs take, p to represent the costs of the parts and, c to represent the total cost of the repairs.

b. What will the cost of the repairs be if the parts cost $165 and it takes 3 hours to do the repairs? Show your work and label.

+2

Answers (2)

Know the Answer?

Nikhil · Answer 1

(a) c = 40h + p

(b) $285

Step-by-step explanation:

(a)

Total Cost = (Cost per hour x Number of Hours) + Total Cost of Parts

c = 40h + p

(b)

For this case, p = $165 and h = 3:

c = 40*3 + 165 = $285

Immanuel Cannon · Answer 2

A) $40h+p=c

h = number of hours the repairs take

p = the costs of the parts

c = total cost of the repairs

B) h: 3 hours

p : $165

substitute the variable

40 (3) + 165

40 (3) = 120

120+165 = $285