Question

1 keg of beer is 15.5 gallons and costs $24. how much is the price per fluid ounce?

Answer 1

To determine the price per fluid ounce, the first step is to convert the volume of 15.5gallons to fluid ounces.

The unit equivalency is: 1 gallon is equal to 128 fluid ounces

To express 15.5 gallons in fluid ounces you have to multiply them by 128:

`15.5\cdot128=1984`

So, 15.5 gallons is equal to 1984 fluid ounces.

Now you know that the keg, which contains 1984 fluid ounces cost $24, using cross multiplication you can determine how much does one fluid ounce cost:

1984 fluid ounces ______ $24

1 fluid ounce ______ $x

Both relationships are at the same ratio so that:

`\begin{gathered} (24)/(1984)=(x)/(1) \\ 0.012=x \end{gathered}`

The price per fluid ounce is $0.012