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Vsevolod [243]
3 years ago
9

How do you Solve 3-x=9

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0

Answer:

<h2>x = -6</h2>

Step-by-step explanation:

3 - x = 9        <em>subtract 3 from both sides</em>

3 - 3 - x = 9 - 3

-x = 6             <em>change the signs</em>

x = -6

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Answer:

1: 3 ratio of the volume of the cone to the volume of the cylinder

Step-by-step explanation:

Volume of cone(V) is given by:

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Volume of cylinder(V') is given by:

V' = \pi r'^2h'

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As per the statement:

A cylinder and a cone have congruent heights and radii.

⇒r = r' and h = h'

then;

\frac{V}{V'} = \frac{ \frac{1}{3} \pi r^2h}{\pi r'^2h'} = \frac{ \frac{1}{3} \pi r'^2h'}{\pi r'^2h'}

⇒\frac{V}{V'} =\frac{1}{3} = 1 : 3

Therefore, the ratio of the volume of the cone to the volume of the cylinder is, 1 : 3

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