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Question 164023: tasty bakery sells 3 kinds of muffins: Chocoalte chip muffins at 25 cents each Otmeal at 30 cents each and blueberry muffins at 35 cents each. Charles buys some of each kind and chooses three times as many muffins as chocolate chip muffins. If he spends $6.70 on 21 muffins, how many oatmeal muffins ded he buy?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! tasty bakery sells 3 kinds of muffins: Chocoalte chip muffins at 25 cents each Otmeal at 30 cents each and blueberry muffins at 35 cents each. Charles buys some of each kind and chooses three times as many blueberry muffins as chocolate chip muffins. If he spends $6.70 on 21 muffins, how many oatmeal muffins ded he buy?
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Value equation: 25c + 30t + 35b = 670 cents
Quantity equation: b = 3c
Quantity equation: c + t + b = 21
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Rearrange:
25c + 30t + 35b = 670
3c + 0 - b = 0
c + t + b = 21
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Use any method you know to get:
c = 4
t = 5
b = 12
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Cheers,
Stan H.
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