3 years ago

Cristobal takes 3 hours to wash 5 cars. At this rate, how many cars could he wash in 45 hours

Mathematics

1 answer:

aalyn [17]3 years ago

6 0

To solve this I would set up a proportion.
3/5=45/x
solve and you will get 15 cars

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ratelena [41]

The formula of a volume of a cylinder:

$V_{cylinder}=\pi r^2H$

The formula of a volume of a cone:

$V_{cone}=\dfrac{1}{3}\pi r^2H$

If a cone and a cylinder have the same radius and the same height, then a volume of a cylinder is three times greater than a volume of a cone.

$V_{cylinder}=3V_{cone}\\\\V_{cone}=\dfrac{1}{3}V_{cylinder}$

$V_{cylinder}=360\ cm^3$

$V_{cone}=\dfrac{1}{3}\cdot360\ cm^3=120\ cm^3$

<h3>Answer: The volume of a cone is equal 120 cm³.</h3>

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Dennis_Churaev [7]

46 = (7*4) +(10/2) +13
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so than i ve understood it right your exercise

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There are 5 kids who want to start a game of Red Rover. Then 12 more kids come to play. If there are 2 teams in Red Rover, which

mixas84 [53]

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