A pond is being filled by two water lines. The first water line can fill the pond in 2
hours. When the two water lines are used
at the same time, it takes 1., hours to do
the job. How long does it take to fill the
pond using only the second water line?
Give the answer in hours.

2hr

Step-by-step explanation:

Let x be the flow rate of the first line in kg/hr

Let y be the flow rate of the second line kg/hr

Let V be the volume of the pond. in kg

(2 hr)(x kg/hr) = V kg

(1 hr)(x + y kg/hr) = V kg

x + y = 2x

y = x

as the flow rates of the two lines is identical, the second line alone takes two hours to fill the pond.

answer: 26

step-by-step explanation:

well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math

other answer is correct. i had used the radius of the radius somehow. a website: