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 #1
avatar+2129 
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Jessica baked 72 cookies and sold x cookies. Max baked 36 cookies and sold half as many cookies as Jessica did. How many cookies did Jessica sell if they each had the same number of cookies left over?    

 

Call "n" the number of cookies they each had left over.    

 

                                                                72 – x  =  n         (1)     

 

                                                                36 – x/2  =  n      (2)     

 

Subtract (2) from (1)                                36 – x/2  =  0             

 

                                                                        x/2  =  36   

 

                                                                           x  =  72   

 

So                                                        Jessica sold 72 cookies    

                                                             Max        sold 36 cookies     

                                                             and neither had any cookies left over (i.e., n = 0).    

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Aug 20, 2023
Aug 19, 2023
 #2
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Aug 19, 2023

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