Sean rents a tent at a cost of $11 per day plus a onetime insurance fee of $10. Which equation represents the total cost c, in dollars, to rent the tent with insurance for d days?
Correct answer: C. c = 11d +10
- A. c = 11(d + 10)
- B. c = 10(d + 11)
- C. c = 11d +10
- D. c = 10d +11
Explanation
Choice C is correct. It's given that the cost of renting a tent is $11 per day for d days. Multiplying the rental cost by the number of days yields $11d, which represents the cost of renting the tent for d days before the insurance is added. Adding the onetime insurance fee of $10 to the rental cost of $11d gives the total cost c, in dollars, which can be represented by the equation c = 11d + 10.
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Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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