Question 755856: Find the cost per ounce of a sunscreen made from 100 oz of lotion that cost $3.42 per ounce and 70 oz of lotion that cost $14.64 per ounce? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The total ounces of mix is ounces = cost of $3.42 / ounce lotion used = cost of $14.64 / ounce lotion used
--------------------- = cost / ounce of mixture
The sunscreen costs $8.04 / ounce