Question

Find the cost per ounce of a sunscreen made from 110 oz of lotion that cost $3.45 per ounce and 50 oz of lotion that cost $11.61 per ounce.
$  per ounce

Answer 1

Solution:-

Given that, a sunscreen made from 110 oz of lotion that cost $3.45 per ounce and 50 oz of lotion that cost $11.61 per ounce.

We have to determine the cost per ounce.

Since, sunscreen made from 110 oz of lotion costs $3.45 per ounce and sunscreen made from 50 oz of lotion costs $11.61 per ounce.

Therefore,

Total cost = [(110 oz) x ($3.45/oz)] + [(50 oz) x ($11.61/oz)]

Total cost = [110 x 3.45] + [50 x 11.61]

Total cost = $379.5 + $580.5

Total cost = $960

Now,

Total amount = (110 oz) + (50 oz)

Total amount = 160 oz

Hence,

Cost per ounce = $6 per ounce (Answer)