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Question 425333:  Jennifer's bakery sold half as many marble cakes as strawberry shortcakes. The price of  a marble cakes is $6 and the price of a strawberry shortcake is $8.50. If the total amount of sales for these cakes was $391, what is the total number of each kind of cake sold? Please help? 
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website! Jennifer's bakery sold half as many marble cakes as strawberry shortcakes. The price of a marble cakes is $6 and the price of a strawberry shortcake is $8.50. If the total amount of sales for these cakes was $391, what is the total number of each kind of cake sold?  
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Equations: 
Quantity: 2m = s  
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Value::: 6m + 8.5s = 391 dollars 
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Substitute for s and solve for "m": 
6m + 8.5(2m) = 391 
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6m + 17m = 391 
23m = 391 
m = 17 (# of marble cakes) 
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solve for "s" 
s = 2m 
s = 34 (# of stawberry shortcake) 
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Cheers, 
Stan H. 
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