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.

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Question 263463: 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 checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3.41*130+11.99*90=220X
443.30+1,079.10=220X
1,522.4=220X
X=1,522.4/220
X=$6.92 COST OF THE MIXTURE PER OZ.
PROOF:
3.41*130+11.99*90=220*6.92
443.30+1,079.10=1,522.40
1,522.40=1,522.40