Question 68347
ah sells a fruit juice that she makes by mixing together fruit juice concentrate and water. She wants her mixture to contain 30 liters of 15% strength juice. How much of the fruit juice concentrate will she need if the concentrate contains 90% juice?
:
Let x = amt of 90% solution. Then water = (30-x); (Water is a 0% solution:)
:
The percent equation, the water is out of it of course, but maybe it will make
it more understandable:
:
0(30-x) + .9x = .15(30)
:
0 + .9x = 4.5
x = 4.5/.9
x = 5 liters of the 90% stuff;
:
25 liters of water will be required