Answer:
you need to simplify it then you can say that he had marbles and then lost __ then got ___
Answer:
252<em>π</em> or 791.7 mm³/h
Step-by-step explanation:
The volume of a cylinder is given by

We desire to find the volume rate, that is,

<em>dr/dt</em> is the rate of change of the radius which is 7 mm/h.
<em>dV/dr</em> is derived by differentiating the volume equation, yielding

At <em>r</em> = 12 mm and <em>h</em> = 1.5 mm,

9514 1404 393
Answer:
Step-by-step explanation:
Divide each number in the ratio by their greatest common divisor.
4500 : 80000 = (4500/500) : (80000/500) = 9 : 160
8100 : 144000 = (8100/900) : (144000/900) = 9 : 160