SOLUTION: A silversmith mixed 45g of a 70% silver alloy with 40g of a 25% silver alloy. What is the percent concentration of the resulting ally? Round your answer to one decimal place

Question 901488: A silversmith mixed 45g of a 70% silver alloy with 40g of a 25% silver alloy. What is the percent concentration of the resulting ally? Round your answer to one decimal place
Found 3 solutions by josgarithmetic, richwmiller, MathTherapy:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
and then multiply by 100.

, the multiplying already taken care, direct percents used.

Percent.
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
.70*45+.25*40=x(45+40)
.70*45+.25*40=x(85)
31.5+10=85x
41.5=85x
x=41.5/85
x=0.488=48.8%

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

A silversmith mixed 45g of a 70% silver alloy with 40g of a 25% silver alloy. What is the percent concentration of the resulting ally? Round your answer to one decimal place

Resultant percentage concentration: .488235 ≈
You can do the check!!
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