a 12-ounce can of frozen orange juice concentrate is mixed with 3 cans of cold water to obtain a mixture that is 10% juice. what is the percent of pure juice in the concentrate?
The final juice has 4(12)= 48 onces of liquid. If that is 10% juice then there are 4.8 ounces of juice in it. Since you only added water, there must have been 4.8 ounces of juice in the initial 12 ounces.