10. 3.56/7.14 points I Previous Answers 1.3.099 My A roofing contractor purchase

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10. 3.56/7.14 points I Previous Answers 1.3.099 My A roofing contractor purchases a shingle delivery truck with a shingle elevator for $42,550. The vehicle requires an average expenditure of $6.50 per hour for fuel and maintenance, and the operator is paid $16.50 per hour. (a) Write a linear equation giving the total cost C of operating this equipment for t hours. (Include the purchase cost of the equipment.) cte 23t+42550 (b) Assuming that customers are charged $46 per hour of machine use, write an equation for the revenue R derived from t hours of use. (e) Use the formula for proft P-R-Cto write an equation for the profit derived from t hours of use. P(t) - (a) Use the result of part (c) to find the brea k-even point-that is, the number of hours this equipment must be used to yield a profit X hr Need Help? ReadIk to Tutor Submit Answer Save ProgressPractice Another Version

Explanation / Answer

P = R - C = 23t + 42550 - 46t = 42550 - 23t

for P = 0 = 42550 - 23t

t = 42550 / 23 = 1850 hr

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