Samantha mixes some amount of 25% sugar syrup with x grams of 10% sugar syrup.The result is 120 grams of 15% sugar syrup. How many grams of 25% sugar syrup did Samantha use?
Final mixture is 120 gm
x = 10% then (120-x) = 25%
.25(120-x) + .1 (x) = .15 (120) solve for x= 10% amount
then 25% amount = 120-x
