<span>30 hours
For this problem, going to assume that the actual flow rate for both pipes is constant for the entire duration of either filling or emptying the pool. The pipe to fill the pool I'll consider to have a value of 1/12 while the drain that empties the pool will have a value of 1/20. With those values, the equation that expresses how many hour it will take to fill the pool while the drain is open becomes:
X(1/12 - 1/20) = 1
Now solve for X
X(5/60 - 3/60) = 1
X(2/60) = 1
X(1/30) = 1
X/30 = 1
X = 30
To check the answer, let's see how much water would have been added over 30 hours.
30/12 = 2.5
So 2 and a half pools worth of water would have been added. Now how much would be removed?
30/20 = 1.5
And 1 and half pools worth would have been removed. So the amount left in the pool is
2.5 - 1.5 = 1
And that's exactly the amount needed.</span>
Answer:
the first one is 18/32 and the second one is 125 games or 120
Step-by-step explanation:
for the first add all the numbers to get your denominator then add the probability of green aND YELLOW.
for the second you just divide 200 by eight to get 25 then times 25 by 5 to get your anwser
hope this helped :)
For 90° clockwise rotation, (x, y) becomes (y, -x).
Your rotated point is (2, 3).
Instead of negative positive and instead of positive negative hope you get it right. Am not that smart
Answer:
Y=-4x-5
Step-by-step explanation:
-21=-4(4)+b
-21=-16+b
b=-5
y=-4x-5
