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Ierofanga [76]
2 years ago
7

Geometry Round volume to nearest tenth

Mathematics
1 answer:
-Dominant- [34]2 years ago
4 0

Answer:

volume= 912.9ft^{3} (not sure how you want to round the answer. it could be rounded to 913 or left as 912.9)

Step-by-step explanation:

<u>volume of cone:</u> to find the height of the cone, subtract the cylinder height from the total height (H-h= cone height)

<u></u>V=\pi r^2\frac{h}{3} \\V=\pi (5.6)^2(\frac{6.8}{3} )\\V=\pi (31.36)(2.2666...)\\V=71.08057\pi \\V=223.3062

<u>volume of cylinder:</u>

<u></u>V=\pi r^2h\\V=\pi (5.6)^2(7)\\V=\pi (31.36)(7)\\V=219.52\pi \\V=689.6424

<u>add them together:</u>

<u></u>V=223.3062+689.6424\\V=912.9486

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The number of tickets they have sold in advance are summed up with the following equation and solution:

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Step-by-step explanation:

First: Review some background information:

Let's see what the problem gives us to answer it. I'll bold out the important parts:

The Opera is collecting monies in advance for ticket sales. The tickets cost $17.50 each. If they have collected $6842.50 already, then how many tickets have they sold in advance?

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We can solve this problem using many ways, but I'm just going to pick one. We will use proportions to answer this. Now thoughts might be going through your head like this: What is this guy saying? What in the world is proportions? Well hopefully you learn from this example (Please don't take offense if you <em>do</em> know how to do proportions).

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\frac{1}{17.50}  \frac{x}{6842.50}

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6842.50 ÷ 17.50 = 391

So our equation is 6842.50 ÷ 17.50, and our solution is 391 tickets

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