A company wants to increase 30% peroxide content of its product by adding pure peroxide (100% peroxide). If x liters of pure peroxide are added to 600 liters of its 30% solution, the concentration, C, of the new mixture is given by the formula below- how many liters of pure peroxide should be added to produce a new product that is 40% peroxide? C= x = 0.3(600)/x + 600 The amount of pure peroxide needed is _____________liters! Solution C= x + 0.3(600)/(x + 600) I\'m assuming you left out the parentheses. If your new concentration will be 40%, then C = .40 .40 = x + 0.3(600)/(x + 600) .4 = [x(x + 600) + 180]/(x + 600) Common denominator. Multiply both sides by x + 600 .4(x + 600) = x2 + 600x .4x + 240 = x2 + 600x x2 + 599.6(x) - 240 = 0 x = 0.4 liters .