An electrical company uses the function f(h) = 15h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(h) = $225.

10 hours
15 hours
3,375 hours
3,450 hours

Question

An electrical company uses the function f(h) = 15h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(h) = $225.

 10 hours
 15 hours
 3,375 hours
 3,450 hours

3mar · Answer

Need help?

macgirl234 · Answer

Yay! 3mar to the rescue again!!

3mar · Answer

Honor is mine!

3mar · Answer

Just plug in the value of f(h) = $225  into f(h) = 15h + 75 and solve for h!
show steps and I am with you if any difficulties face you!

macgirl234 · Answer

ahhhh. How did I not think of that? Okay. let's see here...

225 = 15h + 75
-75             -75
150 = 15h
h = 10

Correct?

macgirl234 · Answer

So 10 hours would be the answer?

3mar · Answer

$$\Huge\color{darkred}\checkmark$$

Congratulations
You hit the right target!

macgirl234 · Answer

Can you help me with one more question? I just need confirmation to be sure that I'm correct.

3mar · Answer

Thank you for the medal!
I really appreciate that!

3mar · Answer

You are welcome!
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