It will be cheaper to use Savings Rent-A-Car up to 1000 kilometers, from then on it will be cheaper to use Airport Rent-a-Car.
Given that if one rents a car from Airport Rent-a-Car, the charge is $ 79 plus 7 cents a kilometer, while Savings Rent-A-Car charges $ 59 plus 9 cents a kilometer, to determine, if one will drive D kilometers , when it is cheaper to use Savings Rent-A-Car, the following calculation must be performed:
- 79 + 0.07 x 30 = 79 + 2.1 = 81.1
- 59 + 0.09 x 30 = 59 + 2.7 = 61.7
- 79 + 0.07 x 300 = 100
- 59 + 0.09 x 300 = 86
- 79 + 0.07 x 600 = 121
- 59 + 0.09 x 600 = 113
- 79 + 0.07 x 900 = 142
- 59 + 0.09 x 900 = 140
- 79 + 0.07 x 1000 = 149
- 59 + 0.09 x 1000 = 149
Therefore, it will be cheaper to use Savings Rent-A-Car up to 1000 kilometers, from then on it will be cheaper to use Airport Rent-a-Car.
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