Saturday

January 31, 2015

January 31, 2015

Posted by **Anonymous** on Thursday, October 21, 2010 at 10:49pm.

I keep getting stuck!

- calculus word problem -
**Reiny**, Thursday, October 21, 2010 at 10:59pmlet the radius be r and the height be h

Assuming the cone maintains the same shape

2πr=6

r = 3/π

and r/h = (3/π)/10

r = 3h/(10π)

V = (1/3)πr^2 h

= (1/3)π(9h^2/(100π^2))h

= 3h^3/(100π)

dV/dt = (9/100π)h^2 dh/dt

At this point you will have to know what the relationship between lbs of concrete and cubic feet is, I work in metric and no longer know those units.

**Answer this Question**

**Related Questions**

calculus - Gravel is being dumped from a conveyor belt at a rate of 30 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 30 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 10 cubic ...

Calculus - Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, ...

calc - Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet ...

Calculus - Gravel is being dumped from a conveyor belt at a rate of 10 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 50 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of cubic feet ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 50 cubic ...

Please help Math - Gravel is being dumped from a conveyor belt at a rate of 20 ...