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? 
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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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