SOLUTION: Find the cost per ounce of a sunscreen made from 130 oz of lotion that cost $3.41 per ounce and 90 oz of lotion that cost $11.99 per ounce.

Question 263450: Find the cost per ounce of a sunscreen made from 130 oz of lotion that cost $3.41 per ounce and 90 oz of lotion that cost $11.99 per ounce.
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
This is a mixture problem. Here is a table based on the given information
sunscreen . . . . . . . ounces . . . . . . $/oz . . . . . . . . .$
A . . . . . . . . . . . . . 130 . . . . . . . . .$3.41 . . . . . . . . 443.30
B. . . . . . . . . . . . . . 99 . . . . . . . . . .$11.99 . . . . . . .1187.01
mixture . . . . . . . . .229 . . . . . . . . . .x . . . . . . . . . .229x
looking at the third column, we get

adding we get

dividing we get
$7.12 rounded to nearest penny.
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