SOLUTION: Two plumbers make house calls. One charges $120 for a visit plus $45 per hour of work. The other charges $90 per visit plus $55 per hour of work. For how many hours of work do the
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Question 699614: Two plumbers make house calls. One charges $120 for a visit plus $45 per hour of work. The other charges $90 per visit plus $55 per hour of work. For how many hours of work do the two plumbers charge the same?
How do I solve this step by step? Answer by solver91311(24713) (Show Source):
The total cost for plumber number 1 expressed as a function of is . That is, the charge per hour times the number of hours plus the fixed charge for a visit.
Using the same pattern, write the function for the second plumber. Then set the two functions equal to each other and solve for
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
