<PRE><B>Question 747818</B>
Make x = admission price and y = number of rides.
 x + 10y = $9.25....1
 x + 25y = $17.50...2

Subtract (1) from (2)

     15y = $8.25
       y = $0.55
Substitute y = $0.55 into (1)

  x + $5.5 = $9.25
        x = $9.25 - $5.5
        x = $3.75
So admission is $3.75
   and each ride costs $0.55

Admission and 30 rides=
$3.75 + 30($0.55)= $20.25

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