A computer company uses the function f(h) = 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(h) = $275.
Well first put the equation as a whole because you have f(h),275=50h+75. Now we have to get h by itself to get its value.
1. Move 75 over to the left by subtracting it for 200=50h
2. Now divide by 50 to get h alone. 4=h
You now know that the value of h is 4.
The correct answer is 4 hours
So , In equation
f(h)=50h+75
Substitute the value of f(h) in equation
Therefore , 275 = 50(h)+75
Simplifying the equation
275-75 = 50h
Therefore, 200=50h
∴ h = 200/50
∴ h= 4 hours
Hence the number of hours worked is 4 hours
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