pool has 45000 gallons. It loses 780 gallons per hour, so the amount at any given time:
45000 - 780h, where h is the number of hours.
The chemical could be added once the amount of gallons in the pool hits 15000. So the equation to solve:
45000 - 780h = 15000
solve:
30000 = 780h
38.46 = h
It will take about 38.46 hours before chemical could be added. It will not take longer than 2 days because 2 days is 48 hours, and we only need about 38 hours.
Answer:
-2x-6=-2x-6
-6=-6
infinity many solutions
hope this helps
have a good day :)
Step-by-step explanation:
9514 1404 393
Answer:
12.1204%
Step-by-step explanation:
The nominal annual rate is 4 times the effective quarterly rate:
(1 +0.12/12)^3 = 1.030301
so the effective quarterly rate is 3.0301%.
The equivalent annual rate compounded quarterly is 12.1204%.
Answer:
m<OPQ + (x+16)° + (6x - 4)° = 360°
Step-by-step explanation:
the sum of interior angles of a polygon with 4 sides is 360
therefore you sum up all of the figures and equate to 360
Answer:
100 liters of 10% solution is used and 20 liters of 40% solution is used
Step-by-step explanation:
Let "X" amount of 10% solution is used. Then the amount of 40% solution used is equal to 120-X
Now
10% of X + 40% of (120-X) = 15% of 120
On solving the above equation, we get
liters
Amount of 40% solution used = 120 -X = 120-100 = 20 liters
100 liters of 10% solution is used and 20 liters of 40% solution is used
