SOLUTION: A certain bronze alloy containing 4% tin is to be added to 350kg of bronze containing 18% tin to produce a new bronze containing 15% tin. How many kilograms of the 4% bronze al

Question 1055339: A certain bronze alloy containing 4% tin is to be added to 350kg of bronze containing 18% tin to produce a new bronze containing 15% tin. How many kilograms of the 4% bronze alloy are required?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A certain bronze alloy containing 4% tin is to be added to 350kg of bronze containing 18% tin to produce a new bronze containing 15% tin. How many kilograms of the 4% bronze alloy are required?
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Equation:
tin + tin = tin
0.04x + 0.18*350 = 0.14(x+350)
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4x + 18*350 = 14x + 14*350
10x = 4*350
x = 4*35
x = 140 kg (amt of bronze alloy needed)
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Cheers,
Stan H.
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