How to find the equation that expresses the total cost in terms of the number of hours?

Question

Aaron's World Processing Service (AWPS) does world processing. The rate for services is $32 per hour plus a $31.50 one-time charge. The total cost to a customer depends on the number of hours it takes to complete the job.

Find the equation that expresses the total cost in terms of the number of hours required to complete the job.

Answer 1

The rate is $32 per hour, which can be written as 32x.

x = the number of hours required to complete the job.

The 1-time charge fee is $31.50, so we add this number to the end of the equation.

Total cost = 32x + 31.50