Four-ninths of a drink mix is dye and the rest is sugar. When the mix is added to water a gallon of drink is made that is 9% sugar. What percentage of the gallon is dye?	Choose the most appropriate option:
A) 6
B) 6.5
C) 7.2
D) 8
E) 24
The proportion of Dye and sugar will remain constant.   Dye/Sugar = (4/9)/(5/9) = x/9   =&gt; 4/5 = x/9 =&gt; x = 4*9/5 = 7.2.   Answer is 7.2.
<result>C</result>
Four-ninths of a drink mix is dye and the rest is sugar. When the mix is added to water a gallon of drink is made that is 9% sugar. What percentage of the gallon is dye?