The solution would be like this for this specific problem:
Volume of a cylinder = pi * r^2 * h
Volume of a cone = 1/3 * pi * r^2 * h
Total Height = 47
Height of the cone = 12
Height of the cylinder = 35
If the top half is filled with sand, then:
volume (sand) = pi * 4^2 * 36
volume (cone) = 1/3 * pi * 4^2 * 12
Total volume = 1960.353816 cubic millimeters
353816 / (10 * pi) = 62.4 seconds.
It will take 62.4 seconds until all of the sand has dripped to the bottom of the hourglass.
Answer:
22
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Frank has 5 cards.
Steve has 3 cards.
Pat has 9 cards.
Therefore, Pat has 4 more cards than Frank.
Hope this helps!
A=Lw
The area is 12*34, 408 sq ft.
