SOLUTION: Paul uses the city bus to get around town. He could pay $1.50 per trip, or he could buy a discount card for $7 a month, and then only pay $1 per trip for that month. a. When wo

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Paul uses the city bus to get around town. He could pay $1.50 per trip, or he could buy a discount card for $7 a month, and then only pay $1 per trip for that month. a. When wo      Log On


   

Question 1109945: Paul uses the city bus to get around town. He could pay $1.50 per trip, or he could buy
a discount card for $7 a month, and then only pay $1 per trip for that month.
a. When would both options be equal?
b. Paul knows he will be using the city bus 15 times in a certain month. Should he
buy the discount card? If so, how much will he save?
Answer by josgarithmetic(39628) About Me  (Show Source):
You can put this solution on YOUR website!
x, number of trips

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He could pay $1.50 per trip,
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1.5x

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or he could buy
a discount card for $7 a month, and then only pay $1 per trip for that month.
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x%2B7


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b. Paul knows he will be using the city bus 15 times in a certain month. Should he
buy the discount card?
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First option: 1.5%2A15=22.5

Discount card option: 15%2B7=22

The discount card option would allow for only a 50 cent savings.