SOLUTION: How many ounces of 8% acid and how many ounces of 20% acid must be mixed to get 10 ounces of 17.6% acid?

Question 892980: How many ounces of 8% acid and how many ounces of 20% acid must be mixed to get 10 ounces of 17.6% acid?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Do it like this one. Only the numbers are different.
-----------
Amanda wants to make 8 gal. of a 20% saline solution by mixing together a 56% saline solution and a 8% saline solution. How much of each solution must she use?
================
e = amount of 8%
f = amount of 56%
---
e+ f = 8 (total solution)
8e + 56f = 20*8 (total saline)
---
e+ f = 8
e + 7f = 20
------------ Subtract
-6f = -12
f = 2
e = 6
RELATED QUESTIONS
how many ounces of 20% hydrochloric acid solution and 50% hydrochloric acid solution must (answered by Boreal)

How many ounces each of a 20% acid solution and a 50% acid solution must be mixed... (answered by Alan3354,ikleyn,greenestamps)

How many ounces of 30% hydrochloric acid solution and 80% hydrochloric acid must be mixed (answered by richwmiller)

how many ounces of 40% acid and 80% acid must be mixed together to get 160ounces of a 70% (answered by oberobic)

how many ounces of 30% hydrochloric acid solution and 80% hydrochloric acid solution must (answered by Fombitz,modi.kk91)

how many ounces of a 4% acid solution and how many ounces of a 10% acid solution must be... (answered by richwmiller,Alan3354)

A 10% acid solution is to be mixed with a 50% acid solution in order to get 120 ounces of (answered by stanbon)

How many ounces of a 4% acid solution and how many ounces of a 10%acid solution must be... (answered by josgarithmetic)

A 5% acid solution is mixed with a 9% acid solution. How many ounces of the 5% acid... (answered by stanbon)