SOLUTION: An alloy which weighs 118 kg is 10 percent silver. How much silver must be added to produce a metal that is 25 % silver?

Algebra.Com
Question 555639: An alloy which weighs 118 kg is 10 percent silver. How much silver must be added to produce a metal that is 25 % silver?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = kg of silver to be added
kg of silver in 10% alloy






23.6 kg of silver must be added
check:




OK

RELATED QUESTIONS

1. How many grams of water must be evaporated from 10 kg of a 60% salt solution to... (answered by josgarithmetic)
In order for a metal to be labeled "A," the silver alloy must contain at least % of pure... (answered by ikleyn)
How much silver is in 12.5 kg of an alloy (metal mixture) which is 8%... (answered by oscargut)
Pure silver is added to an 18% silver alloy to produce 20 ounces of an alloy that is 20%... (answered by josgarithmetic)
How many ounces of a base metal (no silver) must be alloyed with 100 ounces of 39% silver (answered by TimothyLamb)
Metal Alloys. In order for a metal to be labeled "sterling silver," the silver alloy must (answered by checkley77)
A chemist has a 15% silver alloy and a 30% silver alloy. How much of each alloy is need... (answered by nerdybill)
a certain alloy contains 9% silver , another alloy is 14% silver. HOW MUCH OF EACH TYPE... (answered by josgarithmetic)
Please help, I keep trying to work this problem and I keep getting the wrong answer when... (answered by stanbon,josmiceli)