Answer:
2
Step-by-step explanation:
. Hope this helps!
This one looks very tricky but ill try it out
I think it's a although I can't really tell.
Please look at the screenshot below, for some reason Brainly won't let me post my answer.
What I mean about "not fully written" is its impartial. It didn't ask us something like "find how many bracelets she needs to sell"
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.
