Question 241754
.25x+.10(15-x)=.17*15
.25x+1.5-.10x=2.55
.15x=2.55-1.5
.15x=1.05
x=1.05/.15
x=7 L of 25% oj is used.
15-7=8 L of .10% oj is used.
Proof:
.25*7+.10*8=2.55
1.75+.8=2.55
2.55=2.55