Question

PLEASE HELP MEE

The radius of a mini-basketball is 4 inches. A pump can inflate the ball at a rate of 6 cubic inches per second. How long will it take to inflate the ball? Round to the nearest tenth.

Answer 1

44.7 seconds

Explanation:

The volume of a sphere is given by the formula ...

V = (4/3)πr³

For the given radius, the volume of the ball is ...

V = (4/3)π(4 in)³ ≈ 268.08 in³

At an inflation rate of 6 in³/s, the time required to deliver that volume is ...

(268.08 in³)/(6 in³/s) ≈ 44.68 s

It will take 44.7 seconds to inflate the ball.