Paul's plumbing charges a flat fee of $90 plus $40/h for plumbing job. Perfect pipes charges a flat fee of $60 plus $55/h for a plumbing job. A) Write the expressions to represent the total costs of a plumbing job each for company. Let "h" represent the time, in hours, of a plumbing job. B) Is the cost of a 3 - hour-long plumbing job the same at both companies? Write and use an equation to find out.

Question

Mathematics

Roger Kaiser

23 January, 18:04

Paul's plumbing charges a flat fee of $90 plus $40/h for plumbing job. Perfect pipes charges a flat fee of $60 plus $55/h for a plumbing job. A) Write the expressions to represent the total costs of a plumbing job each for company. Let "h" represent the time, in hours, of a plumbing job. B) Is the cost of a 3 - hour-long plumbing job the same at both companies? Write and use an equation to find out.

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Answers (1)

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Erin Johns · Answer 1

For part A:

Paul's plumbing

40h + 90

perfect pipes:

55h + 60

Part B:

we will substitute h = 3 and find out

paul's:

40h + 90

when h = 3

210

for pipes:

55h+60

when h = 3

225

no not the same