SOLUTION: PROBLEM: A chemist needs 900 millileters of a 40% acid solution for a chemistry experiments. The chemist combines x milliliters of a 20% acid solution and y milliliters of a 70%

Question 193338: PROBLEM:
A chemist needs 900 millileters of a 40% acid solution for a chemistry experiments. The chemist combines x milliliters of a 20% acid solution and y milliliters of a 70% acid solution to make 40% acid solution.
a. write a linear system that repesents the situation
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
let x be the amount of 20% solution and y be the amount of 70% solution
:
x+y=900...........eq 1
.2x+.7y=.4(900)...eq 2
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