Airport to the Hotel

​The cost of car service company is $5 per trip plus $0.50 per mile. The fare for the trip from the airport to the hotel was $11.50.  How many miles is the airport from the hotel?

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x = miles from airport to hotel  {the unknown}

​0.5x + 5 = 11.50   {$0.5 per mile plus $5 per trip equals total cost, $11.50}
0.5x = 6.5  {subtracted 5 from each side}
x = 13  {divided each side by 0.5}

the hotel is 13 miles from the airport

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