Question

WILL FAN AND MEDAL
Each cone of the hourglass has a height of 15 millimeters. The total height of the sand within the top portion of the hourglass is 45 millimeters. The radius of both cylinder and cone is 6 millimeters. Sand drips from the top of the hourglass to the bottom at a rate of 10π cubic millimeters per second. How many seconds will it take until all of the sand has dripped to the bottom of the hourglass?

Answer 1

126
108
18
29

Answer 2

@mathstudent55 help please!

Answer 3

@Michele_Laino

Answer 4

here we have to apply the differential and integral calculus

Answer 5

How do I do that?

Answer 6

do you know integral calculus?

Answer 7

Not at all

Answer 8

in that case, I'm sorry, since I don't know how to help you without the use of integral calculus

Answer 9

:/

Answer 10

It was 126