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 7.5% sugar. What percentage of the gallon is dye?	Choose the correct choice from the following answers: A) 6 B) 6.5 C) 7.5 D) 8 E) 24
The proportion of Dye and sugar will remain constant.   Dye/Sugar = (4/9)/(5/9) = x/7.5   =&gt; 4/5 = x/7.5 =&gt; x = 4*7.5/5= 
<gadget id="calculator">4*7.5/5</gadget>
<output>6</output>
6.   6nswer is 6.
<result>A</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 7.5% sugar. What percentage of the gallon is dye?