Acompany is making detergent out of soap and water. they made one batch that has 30% soap and another batch which is 60% soap. if they mix 600 liters of the first batch with 300 liters of the second batch, what percent of soap will be in the detergent?

The amounts of the 1st and 2nd solution, will be 300 + 600, or 900 liters
the amount of pure soap in the solution will be (0.30)(600)+(0.60)(300)

thus whatever (0.30)(600)+(0.60)(300) is, must equal 900x, since that's how much pure soap the mixture of 900liters has



solve for "x"