SOLUTION: how many grams of 5% antiseptic solution must be added to 300g of a 10% solution to produce an 8% solution?

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Question 725629: how many grams of 5% antiseptic solution must be added to 300g of a 10% solution to produce an 8% solution?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
how many grams of 5% antiseptic solution must be added to 300g of a 10% solution to produce an 8% solution?
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Eqution:
anti + anti = anti
0.05x + 0.10*300 = 0.08(x+300)
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Multiply thru by 100 to get:
5x + 10*300 = 8x+8*300
3x = 2*300
x = 200 g (amt. of 5% solution needed)
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Cheers,
Stan H.
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