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3 years ago

What is the solution to this equation?

Mathematics

2 answers:

nikdorinn [45]3 years ago

8 0

B.
You add +12 to both sides and the left side cancels out, leaving X. Then 9+12=21. So X=21

Nitella [24]3 years ago

5 0

Answer:

$B. x=21$

Step-by-step explanation:

$x- 12 = 9 \\ x = 12 + 9 \\ x = 21$

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If 75% of a number is 165 and 10% of the same number is 22, find 85% of that number.

omeli [17]

Answer: Hi there! 187 would be your answer.

Step-by-step explanation:

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3 years ago

James has an ice cube tray that makes ice in the shape of spheres rather than cubes. Each sphere of ice has a radius of 22 2 2 c

Colt1911 [192]

Answer:

James has an ice cube tray that makes ice in the shape of spheres rather than cubes. Each sphere of ice has a radius of 2 cm. One tray makes 6 spheres.What is the total volume of ice the tray can make at one time?

Total volume of the tray James have = 201.06 cm^3

Step-by-step explanation:

Given:

Radius of the spherical ice cube = 2 cm

No. of spheres in the ice cube = 6

We have to find the total volume of the ice tray that can make at one time.

Let the total volume be "V".

Formula to be used:

Volume of sphere = $\frac{4\pi r^3 }{3}$ cubic unit.

Total volume = $n\times \frac{4\pi r^3 }{3}$ cubic unit.

So,

Total volume of the ice tray (V) :

⇒ $V=n\times \frac{4\pi r^3 }{3}$

⇒ Plugging n = 6 and r = 2

⇒ $V=6\times \frac{4\pi (2)^3 }{3}$

⇒ $V=6\times \frac{4\pi (8) }{3}$

⇒ $V=6\times \frac{32\pi }{3}$

⇒ $V=\frac{32\times 6\pi }{3}$

⇒ $V=32\times 2\pi$

⇒ $V=201.06\ cm^3$

So,

The total volume of ice the tray can make at one time = 201.06 cm^3

3 0

4 years ago

In a probability experiment, a painted cube is rolled once. One side of the cube is painted

Natalija [7]

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3 years ago

If fabric costs $5.89 per yard, how much will 7 5/8 yards cost?

Korvikt [17]

A. $44.91
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= 61/8
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since a yard costs 5.89
then 7.625 yards will cost
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8 0

3 years ago

5 ( c+ 2) = -20<br><br> 12a + 5 - 8a = -1<br><br> m - 3 - 6m = -27<br><br> please solve

mel-nik [20]

c = -6

a = -3/2

m = -24/5

Step-by-step explanation:

5(c + 2) = -20

5c + 10 = -20

5c = -20 - 10

5c = -30

<u>c = -6</u>

12a + 5 - 8a = -1

4a + 5 = -1

4a = -1 - 5

4a = -6

a = (-6)/4

<u>a = -3/2</u>

m - 3 - 6m = -27

-5m - 3 = -27 → (times -1)

5m + 3 = 27

5m = 27 - 3

5m = 24

<u>m = 24/5</u>

5 0

3 years ago