Concept explainers
(a)
To calculate: The total cost
(b)
To calculate: The revenue
(c)
To calculate: The profit obtained from
(d)
To calculate: The number of hours the equipment must be used to yield a profit of
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Chapter P Solutions
Trigonometry (MindTap Course List)
- Sales Barnes & Noble had annual sales of $6.8 billion in 2013 and $6.1 billion in 2015. Use the Midpoint Formula to estimate the sales in 2014. Assume that the annual sales followed a linear pattern.arrow_forwardCost, Revenue, and Profit A roofing contractor purchases a shingle delivery truck with a shingle elevator for 42,000. The vehicle requires an average expenditure of 9.50 per hour for fuel and maintenance, and the operator is paid 11.50 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.) (b) Assuming that customers are charged 45 per hour of machine use, write an equation for the revenue R obtained from t hours of use. (c) Use the formula for profit P=RC to write an equation for the profit obtained from t hours of use. (d) Use the result of part (c) to find the break-even point-that is, the number of hours this equipment must be used to yield a profit of 0 dollars.arrow_forwardMonthly Salary A pharmaceutical salesperson receives a monthly salary of $5000 plus a commission of 7 of sales. Write a linear equation for the salesperson’s monthly wage W in terms of monthly sales S.arrow_forward
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