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The regular price of a child's entry ticket to a water park is $9 less than that for an adult's. The park offers half off all entry tickets during the off-peak season. The Sandlers paid a total of $132 for 1 adult ticket and 4 child's tickets to the water park during the off-peak season.  What is the regular price of a child's ticket?

 Sep 22, 2020
 #1
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reg child =   a - 9       on sale     value     =   (4) 1/2(a-9)

One adult ticket        on sale      value =   1(1/2)a                    summed = 132

 

4 (1/2)(a-9)   +  1/2  a   = 132

2.5 a  - 18 = 132

a = $  60      adult regular price                child is   a-9    =  $ 51

 Sep 22, 2020

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