At the frozen yogurt shop, colin pays $3.28 for his treat, which weighs 8 1/5 ounces. what is the unit cost (cents per ounce)?

Hi!

3.28$ = 328 cents

8 1/5 ounces = 41/5 ounces

We will find the unit cost, cents per ounce, using proportions, like this:

328 cents for 41/5 ounces

x cents for 1 ounce

x = (328*1)/(41/5)

x = 328/(41/5)

x = (328*5)/41

x = 1640/41

x = 40

Unit cost = 40 cents per ounce.

Hope this helps!

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42