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Fed [463]
3 years ago
12

Please help with questions 12-16

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0

Answer:

-4

Step-by-step explanation:

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A number is divided by 18 the result is 20 what is the number<br>​
Basile [38]

Answer:

360

Step-by-step explanation:

You can solve this by doing 18 times 20 is 360: and then dividing 360 by 18, results in 20.

3 0
3 years ago
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Solve for x ~<br><br><img src="https://tex.z-dn.net/?f=2%28x%20-%203%29%20%2B%205%283x%20%2B%201%29%20-%2016x%20%3D%20x%20%5C%5C
Mars2501 [29]

Answer:

0

Step-by-step explanation:

<h2><em>2</em><em>x</em><em>-</em><em>6</em><em>+</em><em>1</em><em>5</em><em>x</em><em>+</em><em>5</em><em>-</em><em>1</em><em>6</em><em>x</em><em>=</em><em>x</em></h2>

<h2><em>2</em><em>x</em><em>+</em><em>1</em><em>5</em><em>x</em><em>-</em><em>1</em><em>6</em><em>x</em><em>-</em><em>x</em><em>=</em><em>6</em><em>-</em><em>5</em></h2><h2 /><h2 /><h2><em>0</em><em>×</em><em>x</em><em>=</em><em>1</em></h2><h2 /><h2 /><h2 /><h2><em>x</em><em>=</em><em>1</em><em>÷</em><em>0</em></h2><h2 /><h2 /><h2><em>x</em><em>=</em><em>0</em></h2>
3 0
3 years ago
A sphere has a volume of 288 pi in^3. Find the surface area, Express your answer in pi.
Tpy6a [65]
Sphere Volume   = <span>  4/3 • <span>π <span>• r³
r^3 = sphere volume / (4/3 * PI)
r^3 = 288*PI / (4/3 * PI)
</span></span></span><span>r^3 = 288 / (4/3)
</span>r^3 = 216
r = 6 inches

Sphere Surface Area     =    <span> 4 • <span>π <span>• r²
</span></span></span>
Sphere Surface Area     =  4 * PI * 36

Sphere Surface Area     =  <span> <span> <span> 452.389 square inches

</span></span></span>
4 0
3 years ago
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A lifeguard fills a pool with water at a constant rate. After 1/2 hour, 1/3 of the pool is filled.
Romashka-Z-Leto [24]

Answer: 2/3 of an hour.

Step-by-step explanation: The constant rate of the lifeguard filling the pool is 1/3 of the pool every 1/2 hour.  If she fills it for an hour, she'll get 2/3 of the pool filled.  Therefore, it'll take the lifeguard 1 hour to fill the pool 2/3 of the way.

Hope this helps! :)

4 0
2 years ago
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The kinetic energy of a moving object, E joules, is directly proportional to the square
Mariulka [41]

Answer:

1/4

Step-by-step explanation:

8 0
3 years ago
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