20marbleneeded raisewater cylindricalglass of water1centimetrEach marblediameter1cmradiusofglass?

Question

The answer is 7.8 centermeter cubed (cm^3) but I have no idea how they go the answer.

Answer 1

???????????? yu hav vertikal cyliner with water init ?????????????

wen yu add 20 round marbels it kauz water tu go up how much ?????????

???????? marbel wide=1 cm ???????

volume av spheer=(4/3)pi*radius^3

radius=wide/2=0.5 cm

rad^3=(1/2)^3=1/8

(4/3)/8=1/6....so volume av 1 spheer =pi/6=0.5235987755982988

Comments

My textbook said it's 0.8? i got the same answer as you?

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im trying to find the radius of the cylinder