# math

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Since the car rents for \$22.50 per day and you are charged \$.15 per mile, how many miles could you drive and not spend over \$50.00

• math -

(50 - 22.5) / 0.15 = ______

• math -

number of miles ---- m

.15m + 22.5 ≤ 50
.15m ≤ 27.5
m ≤ 183.333..

Suppose you drive 183 miles
cost = 183(.15) + 22.50 = 49.95 , still good
suppose you drive 184 miles
cost = 184(.15) + 22.5 =50.10, oops, we are over

so you can drive 183 miles and still be under \$50

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