It takes 40 minutes to fill a water tank, and 60 minutes to drain it. How many hours will it take to fill the tank while drainin
1 answer:
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Answer:
$465 is the answer.
Step-by-step explanation:
The equation is given as :
Where h is the number of hours worked and f is the number of fixtures installed.
We have been asked how much does Ben frank charge when he works 7 hours and installs 9 fixtures?
So, we will put the values of h 7 and f = 9 in the equation.
=
= $465
Therefore, Ben charges $465.