A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 30% salt and Solution B is 80% salt. She wants to obtain 50 ounces of a

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 30% salt and Solution B is 80% salt. She wants to obtain 50 ounces of a mixture that is 70% salt. How many ounces of each solution should she use?

Solution A= ?

Solution B= ?

Please explain your steps.