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A fitness center charges a membership fee plus a fixed amount per day for each day the center is used. If Claire paid $68 for 22 days of use, and Adrian paid $71 for 24 days of use, how many dollars is the membership fee?

 Apr 1, 2020
 #1
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F = 24d =  71

F + 22d  =  68    Subtract this equation from the first

        2d = 3

          d = 3/2  =  $1.50 / day      now use this value of 'd' in either one of the equations to compute 'F' 

 Apr 1, 2020

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