cougs
cougs
22-03-2018
Mathematics
contestada
HELP PLEASE BECAUSE KHAN ACADEMY SUCKS!
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Vane11807
Vane11807
22-03-2018
I think it’s 10 cm
Don’t know if I’m right tho
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jcherry99
jcherry99
22-03-2018
volume Large Can
r = 8 cm
pi = 3.14
h = 20 cm
V = pi r^2 h
V = 3.14*8^2 * 20
V = 4019 cm^3
Volume left over.
He has 1/4 of a can of paint left.
V1 = 1/4 * 4019
V1 = 1004.8
Calculate height.
V = 1004.8
pi = 3.14
r = 5 cm^2
h = ??
h = V/(pi r^2)
h = 1004.8 / (3.14 * 5^2)
h = 1004.8 / 78.5
h = 12.8 cm
There are other ways of doing this, but this is the clearest.
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