Profit equation? i dont know how?

Posted on 2015-10-16 05:56:00 in Math by BRACKEL

(1 pt) A contractor purchases a backhoe for $39200. Fuel and standard maintenance cost $6.42 per hour, and the operator is paid $11.01 per hour.
a. Write a cost function for the cost C of operating the backhoe for x hours. Be sure to include the purchase price in the cost function.

Cost equation: C =
(6.42+11.01)x+39200

b. If customers pay $30.08 per hour for the contractor's backhoe service, write the revenue function R for the amount of revenue gained from x hours of use.

Revenue equation: R = 30.08x

c. Write the profit function P for the amount of profit gained from x hours of use.

Profit equation: P = 30.08x-39200

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