Because 1/2 a pound is half of 1 pound and 3.50 is the value of half that pound, you can add 3.50 to 3.50 to get 7 dollars which is the value for 1 pound
The ratio is: Chlorine : Water = 1 : 10 m ( Water ) = 15 ounces m ( Chlorine ) = x x : 15 = 1 : 10 10 x = 15 * 1 10 x = 15 x = 15 : 10 x = 1.5 ounces Answer: We need to add 1.5 ounces of Chlorine for the correct ratio.
