SOLUTION: a 10 pound bag of mixed candy contains 30% chocolate. How many pounds of the mix should she remove from the bag so that, when she adds just chocolate to the bag. she'll have a mix

Question 787041: a 10 pound bag of mixed candy contains 30% chocolate. How many pounds of the mix should she remove from the bag so that, when she adds just chocolate to the bag. she'll have a mixture that contains 60% chocolate?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a 10 pound bag of mixed candy contains 30% chocolate. How many pounds of the mix should she remove from the bag so that, when she adds just chocolate to the bag. she'll have a mixture that contains 60% chocolate?
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Equation:
choc - choc + choc = choc
0.30*10 - 0.30x + 1*x = 0.60*10
=======
30*10 - 30x +100x = 60*10
70x = 30*10
x = (3/7)10
x = 4.2857 lbs (amt to be removed and replaced)
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Cheers,
Stan H.
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