Question 693839: You have some chocolate bars which are 55% cocoa, and some other chocolate bars that are 25% cocoa. If you melt them down and mix them together, and end up with chocolate that is 49% cocoa, how many if each bar was used?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! You have some chocolate bars which are 55% cocoa, and some other chocolate bars that are 25% cocoa. If you melt them down and mix them together, and end up with chocolate that is 49% cocoa, how many if each bar was used?
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Equation:
cocoa + cocoa = cocoa
0.55A + 0.25B = 0.48(A+B)
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55A + 25B = 48A + 48B
7A = 23B
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One possible answer:
23 of the 55% bars
7 of the 25% bars
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Cheers,
Stan H.
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