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.
 
        
             
        
        
        
Answer:
The slope of the new road is 0.
Step-by-step explanation:
- the slope of d street line is tan(90)
[if the angle made by a line with x axis is  then, the slope of that line will be tan(
 then, the slope of that line will be tan( ) ]
) ]
- here, the angle made by the d street line with x axis is 90 degrees.
- if a road is to be built which is perpendicular to d street , it should make 0 degrees i.e, it should be parallel to x axis .
- so, the slope of new road will be tan(0) = 0
 
        
                    
             
        
        
        
I'm like girl do you have plans. Can't keep my heart in your hands. She kicked me out I'm like vro.
        
             
        
        
        
The 
coordinates of the y-intercept of the line represented by the equation 5x+3y=30 are 
(0,10).