System of Equations for Car Rental Costs
Consider two car rental companies. Cars R Us charges a $100 upfront fee plus $0.10 per mile. Thrifty Car Rentals charges $0.25 per mile with no upfront fee. If TC represents the total cost of the rental and n represents the number of miles driven, which of the following systems of equations best models this situation?
A
TC = 100 - 0.10n
TC = 0.25 - n
B
TC = 100 + 0.10 / n
TC = 0.25 / n
C
n = 100 + 0.10 / TC
n = 0.25 / TC
D
TC = 100 + 0.10n
TC = 0.25n
E
n = 100 + 0.10TC
n = 0.10 TC
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