SOLUTION: 1. How many grams of water must be evaporated from 10 kg of a 60% salt solution to produce a 50% salt solution? 2. An alloy which weighs 118 kilograms is 10% silver. How much si

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: 1. How many grams of water must be evaporated from 10 kg of a 60% salt solution to produce a 50% salt solution? 2. An alloy which weighs 118 kilograms is 10% silver. How much si      Log On

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Question 828475: 1. How many grams of water must be evaporated from 10 kg of a 60% salt solution to produce a 50% salt solution?
2. An alloy which weighs 118 kilograms is 10% silver. How much silver must be added to produce a metal that is 25% silver?

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Question 1:
What kind of salt is this?

Question 2:
Let g = the grams of silver to add,
%28118%2A10%2Bg%29%2F%28g%2B118%29=25 and solve for g.
(Look at "one unknown material" Mixture lesson linked from my profile)