a pool with dimansions is filling with water at a rate of 20 gallons per minute. about how many hours will it take to fill the pool if 1 cubic foot = 7.5 gallons?
The top is 20f diameter and the side is 4f.
this question will need a calculater.
+128408 Let's find the voume of the pool...it's a "cylinder," so the volume is given by...
pi x r^2 x h = pi x (10 ft)^2 x (4 ft) = about 1256.64 cubic ft
And it is being filled with 20 /7.5 = 8/3 cubic ft of water per min
So...the number of minutes it takes to fill the pool is
1256.64 / (8/3) = 471.24 min
And dividng this by 60, we have...7.854 hrs
+128408 Let's find the voume of the pool...it's a "cylinder," so the volume is given by...
pi x r^2 x h = pi x (10 ft)^2 x (4 ft) = about 1256.64 cubic ft
And it is being filled with 20 /7.5 = 8/3 cubic ft of water per min
So...the number of minutes it takes to fill the pool is
1256.64 / (8/3) = 471.24 min
And dividng this by 60, we have...7.854 hrs
