the bill for your automobile repairs was $375.00 THe cost of labor is $50.00 per hou. the cost for materials is $150. how many hours did the mechanic work on ur car?

Question

anonymous · Answer

The cost of the automobile repairs, in dollars, is given by the function$$f(x)=50x+150$$where x the number of hours the mechanic worked on your car.

If the overall cost was 375$ then$$375=50x+150$$$$50x=375-150$$$$50x=225$$$$x=\frac{225}{50}$$$$x=4.5$$

So, the mechanic worked 4.5 hours on your car.

anonymous · Answer

wouldnt it be 4.4?

anonymous · Answer

since u divide 220 by 50 and u get 4.4

anonymous · Answer

It is$$\frac{225}{50}=\frac{25\times9}{25\times2}=\frac{9}{2}=4.5$$