Question 1025418

Anna wants to make 30 mL of a 60% salt solution by mixing together a 72% salt solution and a 54% salt solution. How much of each solution must she use.
<pre>{{{highlight_green(matrix(2,6, Amount, of, "72%", "solution:", 10, mL, Amount, of, "54%", "solution:", 20, mL))}}}