Question 261065
A quart of vodka is 30% alcohol. Write a formula for the 
percentage of alcohol in a mixture of V quarts of vodka 
and J quarts of orange juice.
<pre>
                         Thirty percent of V quarts of vodka
Percentage of alcohol = -----------------------------------  x 100&
                                 V + J quarts of liquid 


                   {{{P =((.30V)/(V+J))*"100%"}}}

is the percentage of alcohol in the screwdriver.

Edwin </pre>