For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% alcohol solution and the other with 80% alcohol solution.
a.) Write a system of linear equations that you can use to determine how many liters of each type of alcohol solution Marisol should combine to get 2 liters of a 50% alcohol solution. Be sure to define your variables.
b.) Solve the system and determine how many liters of each type of alcohol solution Marisol should combine. Show all your work.
I got that x = 3/2 and y 1/2. But my teacher wants me to show my work.

Question

For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% alcohol solution and the other with 80% alcohol solution.
a.) Write a system of linear equations that you can use to determine how many liters of each type of alcohol solution Marisol should combine to get 2 liters of a 50% alcohol solution. Be sure to define your variables.
b.) Solve the system and determine how many liters of each type of alcohol solution Marisol should combine. Show all your work.
I got that x = 3/2 and y 1/2. But my teacher wants me to show my work.

anonymous · Answer

Someone PLEASE help! She won't accept it unless I show all my work... :( I'm desperate.