Oceanside Bike Rental Shop charges 17 dollars plus 7 dollars an hour for renting a bike. Mike paid 66 dollars to rent a bike. How many hours did he pay to have the bike checked out ?

  7 hours

Step-by-step explanation:

The hourly charge was $66 -17 = $49. That charge was $7/hour so Mike had the bike for ...

  $49/($7/hour) = 7 hours.

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You could write an equation for the total charge, then set it equal to 66 and find the solution that way. For h hours, the charge is ...

  charge = 17 + 7h

  66 = 17 +7h

  49 = 7h . . . . . . . . maybe this looks familiar

  49/7 = h = 7 . . . . divide by the coefficient of h

Mike had the bike for 7 hours.

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step-by-step explanation:

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