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Abe, a plumber, charges $50 per hour plus $75 for making an in-home visit. The Plumbing Service charges $65 per hour but no set fee for a visit.How many hours of pluming work are needed for each to cost the same?


PLEASE HELP!!

Sagot :

x- amount of hours
50x+75=65x
15x=75    /15
x= 5

Answer:

5 hours.

Step-by-step explanation:

Let x be the number of hours.

Abe, a plumber, charges $50 per hour plus $75 for making an in-home visit.

Cost of Abe = [tex]75 + 50x[/tex]       ....(1)

The Plumbing Service charges $65 per hour but no set fee for a visit.

Cost of Abe = [tex]65x[/tex]         .... (2)

We need to find the hours of pluming work are needed for each to cost the same.

From (1) and (2) we get

[tex]75 + 50x=65x[/tex]

[tex]75=65x-50x[/tex]

[tex]75=15x[/tex]

Divide both sides by 15.

[tex]5=x[/tex]

Therefore, 5 hours of pluming work are needed for each to cost the same.

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