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Oliver and Juan had $66 altogether. Juan had $24 less than Oliver. After Juan spent some money at the store, Oliver had 3 times as much money as Juan. How much money had Juan spent at the store?

 Jun 28, 2022
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O + J  =  66    

O -  J =   24         add these

 

2O  =     90

 

O  = 90 / 2   =  $45  = what Oliver had  at all times

J =  $21  = what Juan had at first   

 

Juan had  (1/3)O  =   (1/3) (45)   =  $ 15  after the store 

 

He spent  21 - 15  =       $ 6 at the store

 

 

cool cool cool 

 Jun 29, 2022

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