SOLUTION: How much 15% acid must be mixed with 21% acid to obtain 70mL of 18% acid?
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Question 1008449: How much 15% acid must be mixed with 21% acid to obtain 70mL of 18% acid?
Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
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See the lesson Solving typical word problems on mixtures for solutions. You will find there the solutions of mixture problems
similar to yours. Read it attentively and then solve your problem by substituting your data.
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