3 years ago

Fifteen more than half a number is 9?

1 answer:

6 0

That in algebraic form would be $\frac{1}{2}n + 15 = 9$

Subtract 15 to both sids and you get
$\frac{1}{2}n = -6$

Multiply 2 on both sides and you get
n = -12

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butalik [34]

Answer:

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Step-by-step explanation:

See explanation in the attachement below

Download docx

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Answer:

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Answer:

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Step-by-step explanation:

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1 year ago

Read 2 more answers

Find the volume of a right circular cone that has a height of 2.5 m and a base with a diameter of 18.6 m. Round your answer to t

dem82 [27]

Answer:

226.4 m³.

Step-by-step explanation:

The volume of a right cone with a circular base is:

$\displaystyle V = \frac{1}{3} \pi\cdot r^{2}\cdot h$ ,

where

$V$ is the volume of the cone,
$r$ is the radius of the cone,
and $h$ is the height of the cone.

The radius of the circular base is one-half its diameter.

$\displaystyle r= \frac{1}{2}h=9.3\;\text{m}$ .

$\displaystyle V = \frac{1}{3} \pi\cdot r^{2}\cdot h = \frac{1}{3} \pi \times 9.3^{2} \times 2.5 \approx 226.4\;\text{m}^{3}$ .

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3 years ago