Answer:
If the pool is 2/3 filled and then the inlet pipe and drain pipe are opened, it will take 140 hours to fill the pool
Step-by-step explanation:
An inlet pipe can fill the pool in hours = 20
Inlet pipe 1 hour work = 
A drain pipe can empty the pool in 21 hours
Drain pipe 1 hour work =
Inlet pipe and drain pipe 1 hour together work = 
Now we are given that the pool is 2/3 filled
So, remaining portion to be filled =
So, Inlet pipe and drain pipe fill
in hours = 1
So, they can fill 1/3 in hours = 
Hence If the pool is 2/3 filled and then the inlet pipe and drain pipe are opened, it will take 140 hours to fill the pool
Answer:
the line extends from -2 to 0 and then to +2
1 point is divided into 5 intervals
the whole line has 20 intervals in total
Answer:
x=3
Step-by-step explanation:
Keep in mind that the equation of the y-axis is simply x=0. A line parallel to the y-axis that passes thru x = 3 has the equation x=3. That's it.
You cannot write this in slope intercept form because vertical lines don't have defined slopes.
None of these are equivalent to 34; they're all different values.
Answer:
whats the question?
Step-by-step explanation: