Janet is mixing a 15% glucose solution with a 35% glucose solution. This mixture produces 35 liters of a 19% glucose solution. How many liters of the 15% solution is Januet using in the mixture?
Multiply thru by 100 to get: 15x + 35*35 - 35x = 19*35 -20x = -16*35 x = 28 liters (amount of 15% glucose needed in the mixture) 35-x = 35-28 = 5 liters (amount of 35% glucose needed in the mixture) Hope this helps.. :)
