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A cylindrical glass has a diameter of 3 inches and is 10 inches tall. Suppose the faucet dispenses water at a rate of 1 cubic inches per second. How long does it take to fill the glass 50%? Enter your answer as a decimal rounded to two places.

User Hetptis
by
8.1k points

1 Answer

5 votes

Answer:

35.35 seconds

Explanation:

The volume of the cylindrical glass can be calculated as:

V = πr²h

where r is the radius (half of the diameter), h is the height, and π is the mathematical constant π (approximately 3.14).

Since the diameter is 3 inches, the radius is 1.5 inches. The height is 10 inches. Therefore, the volume of the glass is:

V = π(1.5)²(10) ≈ 70.69 cubic inches

To fill the glass 50%, we need half of the volume:

V/2 ≈ 35.35 cubic inches

The faucet dispenses water at a rate of 1 cubic inch per second, so the time it takes to fill the glass 50% is:

t = (V/2) / (1 cubic inch per second) ≈ 35.35 seconds

Therefore, it takes approximately 35.35 seconds to fill the glass 50%. Rounded to two decimal places, the answer is 35.35 seconds.

User Jackar
by
8.2k points
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