2.2 Assignment (Module 4 Topic 1)

Use this scenario to answer questions 1 and 2:

Kaitlin knows that if she needs to add antifreeze to her car's radiator the mixture used must contain 50% antifreeze and 50% water. How many gallons of a mixture containing 80% antifreeze must be added to a 3-gallon mixture containing 40% antifreeze to obtain the mixture Kaitlin needs?

Use this scenario to answer questions 3 and 4:

The directions on the back of a 2-quart bottle of a 60% orange concentrate says it needs to be mixed with water to obtain a 20% orange drink. How much water should Hector add to the concentrate to obtain a drink that is 20% orange concentrate?

Use this scenario to answer questions 5 and 6:

A research scientist has 10 liters of a 40% acid solution. She needs to create a solution containing 35% acid by mixing the 10 liters with a second solution containing 20% acid. How much of this second solution should she use?