# At the local grocery store, a 16-ounce bottle of apple juice costs $3.20. What is the cost of the apple juice per ounce? ##### 1 Answer Jun 27, 2018 #### Answer: The cost of apple juice per ounce is 20 cents. #### Explanation: We know that a $16$ounce bottle is $3.20 and we want to find how much per ounce is.

So we set up a proportion and let $x$ be the cost of one ounce:
$\frac{16}{3.20} = \frac{1}{x}$

Now we can cross multiply:
$16 x = 3.20$

Divide both sides by $\textcolor{b l u e}{16}$:
$\frac{16 x}{\textcolor{b l u e}{16}} = \frac{3.20}{\textcolor{b l u e}{16}}$

Therefore,
$x = 0.20$

The cost of apple juice per ounce is 20 cents.

Hope this helps!