SOMEONE PLEASE HELP ME!!
A science teacher has a supply of 20% saline solution and a supply of 50% saline solution. How much of each solution should the teacher mix together to get 60 mL of 28% saline solution for his experiment?

Question

SOMEONE PLEASE HELP ME!!  
A science teacher has a supply of 20% saline solution and a supply of 50% saline solution. How much of each solution should the teacher mix together to get 60 mL of 28% saline solution for his experiment?

anonymous · Answer

Um. How much of the solutions has 20% and 50%? They should tell you 20% for x number of mL.

anonymous · Answer

Answer choices
16mL of the 20% solution and 44 mL of the 50%
44                                             16
16                                             16
44                                             44

anonymous · Answer

attachment

anonymous · Answer

I had no clue how to even start to work this out you are a blessing for showing me step by step thanks a million

anonymous · Answer

There are two unknowns in the equation x and y so you need two unique equations to solve.