A mixture contains 4 fluid ounces of water for every 3 fluid ounces of blue food coloring How much blue food coloring needs to be added to 12 fluid ounces of water?
Answer: Let x be the amount of blue food coloring to be added to 12 fluid ounces of water.
Therefore, we have:
[tex]\frac{4}{12}=\frac{3}{x}[/tex]
[tex]4x=3 \times 12[/tex]
[tex]4x=36[/tex]
[tex]x=\frac{36}{4} =9[/tex]
Therefore, 9 ounces of blue food coloring needs to be added to 12 fluid ounces of water.
