SOLUTION: How many milliliters of water would you add to 75 milliliters of a 15% acid solution to make a 10% solution? (This is supposed to be solved using a system of linear equations.
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Question 456877: How many milliliters of water would you add to 75 milliliters of a 15% acid solution to make a 10% solution? (This is supposed to be solved using a system of linear equations.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
------ percent ---------------- quantity
Acid 15 ----------------75 ml
water 0 ----------------x ml
Total 10 ----------------75+x ml
15*75+0*x=10(75+x)
1125=750+10x
-10x=750-1125
-10x=-375
/-10
x=37.5 ml water
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