This is similar to Problem 9 from your Section 3.2 worksheet.

Your car radiator can hold liters of fluid. Many automotive stores sell jugs of pure antifreeze, but some also sell jugs of antifreeze that have been premixed with water. Suppose you buy a jug of % antifreeze mixture as well as a jug of pure antifreeze. How many liters of each jug must you use to make enough of a % mixture to fill your radiator?

You need of the % antifreeze and of the pure antifreeze. Be sure to include units.