Water come out of a pipe at a rate of 16 gallons per minute. How many gallons have come out after 4 minutes

Mathematics

1 answer:

alina1380 [7]3 years ago

7 0

Answer:

64 gallons

Step-by-step explanation:

Ask yourself; if

16gallons = 1minute

? = 4minutes

Cross multiply;

(16 × 4) ÷ (1) = 64

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7 0

3 years ago

Find the volume of the composite solid. Round your answer to the nearest tenth

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Answer:

V = 1206.3 $ft^{3}$

Step-by-step explanation:

This shape is made up of a cylinder on the bottom and a cone on the top. We'll find the volumes of these shapes separately and then add them together.

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Substitute in the formula for the area of a circle.

V(cylinder) = $\pi$ $r^{2}$ x h

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V(cylinder) = $\pi$ x $8^{2}$ x 4

Evaluate using a calculator

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To the nearest tenth, V(cylinder) = 804.2

Volume of a cone = $\frac{\pi r^{2}h }{3}$ . This is the area of the circular part of the cone ( $\pi r^{2}$ ), multiplied by the height from the point to the base, all divided by 3.