Answer:
90 and 30 liters
Step-by-step explanation:
1) if solution of 20% is 'x' and of 60% is 'y' liters, then
2) the pure chlorine is: for solution of 20% - 0.2x, for solution of 60% - 0.6y and
3) the mix of the two solutions is 120=x+y.
4) using these items it is possible to make up the system of two equations:

5) finally, x=90 liters of 20%; y=30 liters of 60% solution.
$0.85
38.25/45= .85
TO CHECK
.85 times 45 equals 38.25
Answer:
LETS TAKE THEM DOWN!
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
this is a rate of time, 60 must be multiplied by the hours to get the days