Raymond B. answered 10/27/22
Math, microeconomics or criminal justice
45-20=25
she needs more water than 45% salt
25/20=5/4 times more
5 ounces of water with every 4 ounces of 45% salt yield a mixture of 9 ounces of 20% salt
5(.0)+4(.45)=9(.2)=1.8 ounces of pure salt & 7.2 ounces pure water