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Rudik [331]
3 years ago
8

The portion of a student’s ballpoint pen that contains the ink is a cylinder with a diameter of 0.400 cm and a height of 11.5 cm

. If the ink lasts 7 weeks, what is the volume of ink that the student uses each week?
Answer choices are :

A) 0.21 cm 3

B) 0.92 cm 3

C) 1.84 cm 3

D) 12.9 cm 3
Mathematics
1 answer:
Musya8 [376]3 years ago
6 0
Volume of a cylinder=pi*r^2*h Diameter=0.400, Radius=0.400/2=0.200 | V of cylinder=pi*(0.200)^2*11.5=1.444 now this remain for 7 weeks...to get ink used for 1 week just divide it by 7 =1.444/7=0.207 | The answer is A
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