Question
A water treatment plan is built with three cylindrical tanks to contain the water for a town. Each tank has a radius of 15 feet and a depth of 25 fee.
If there are about 7.5 gallons in a cubic foot of water, approximately how many gallons of water can be treated at the plant at any one time?
A. 7.1 * 10^3
B. 1.3 * 10^5
C. 4.1 * 10^5
D. 4.1 * 10^6
I did: pi * 15^2 * 25 * 3 * 7.5 = 397607.82
(area * height * num tanks * gallons/volume)
This doesn't match any of the options given. What could be wrong?
If there are about 7.5 gallons in a cubic foot of water, approximately how many gallons of water can be treated at the plant at any one time?
A. 7.1 * 10^3
B. 1.3 * 10^5
C. 4.1 * 10^5
D. 4.1 * 10^6
I did: pi * 15^2 * 25 * 3 * 7.5 = 397607.82
(area * height * num tanks * gallons/volume)
This doesn't match any of the options given. What could be wrong?
Answers
bobpursley
The answers are wrong, you are correct.
lucy
thanks mr. pursley
Evelyn
Round to 397607.82 and move decimal 5 times
4.1x10 to the 5th power
4.1x10 to the 5th power
Evelyn
I have the answer sheet and it says the answer is C