Question

An electrician charges a set fee of $150 for every house call and then charges an additional $70 per hour. Write an equation for C,C,C, in terms of t,t,t, representing the total cost of the electrician's services if the electrician spends ttt hours at the house working.

Answer 1

C = 70t + 150

Explanation:

Since they charge $70 per hour and t represents the number of hours worked, the cost of the services alone can be represented by 70t.

There is a $150 set fee, so add this to 70t:

70t + 150 represents the total cost.

To create the equation, set this equal to C, the total cost:

C = 70t + 150 is the equation