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USPshnik [31]
3 years ago
8

A stick is cut into 8 equal pieces. If each piece were 10cm shorter,we could have cut the original stick into 12 equal pieces. H

ow long is the stick?
Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0

Answer:

240 cm

Step-by-step explanation:

8x=12(x-10)

8x = 12x -120

120 = 4x

30 = x

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Llana [10]
Sub in the values and solve for W
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dexar [7]

Answer:

BCD = 60

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Step-by-step explanation:

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3 years ago
What is the volume of a cone that has a radius of 4 cm and a height of 9 cm?
vodka [1.7K]
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In this case, our base is a circle, which has a radius of 4 cm.
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A=\pi (4)^2=\pi (4\times4)=16\pi=B

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V=\frac{1}3\times16\pi \times9

Use 3.14 to approximate pi as the question states. 16 × 3.14 = 50.24.

V\approx\frac{1}3\times50.24\times9

We could punch all of that into our calculator to get the same answer, but since 1/3 of 9 is clearly 3, let's just go with that.

V\approx3\times50.24

\boxed{V\approx150.72\ cm^3}
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Cole would pay $25.30 
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Hope this helped
3 0
3 years ago
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