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ozzi
4 years ago
14

One face of a cube has an area of 12 feet2. What is the surface area of the cube? A. 24 feet2 B. 144 feet2 C. 12 feet2 D. 72 fee

t2
Mathematics
1 answer:
Nuetrik [128]4 years ago
3 0

A cube has 6 faces.

The area of one face is 12 feet^2

Multiply the area of one face by 6

The area of the whole cube would be 12 x 6 sides = 72 feet^2


The answer is D.

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50 POINTS!!! Type the correct answer in each box. Use numerals instead of words.
Scrat [10]

Answer:

The correct answer to this is 200 and 34.90%

Step-by-step explanation:

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 3000 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 3000, so we can write it down as 100%=3000.

4. We know, that x% equals 1046 of the output value, so we can write it down as x%=1046.

5. Now we have two simple equations:

1) 100%=3000

2) x%=1046

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=3000/1046

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1046 is what percent of 3000

100%/x%=3000/1046

(100/x)*x=(3000/1046)*x       - we multiply both sides of the equation by x

100=2.868068833652*x       - we divide both sides of the equation by (2.868068833652) to get x

100/2.868068833652=x

34.866666666667=x

x=34.866666666667

now we have:

1046 is 34.866666666667% of 3000

7 0
3 years ago
The blueprint for Jessica’s new room has a scale that states every ½ inch is equal to 15 inches. If this blueprint shows the len
Maurinko [17]

Answer:

Her room is 90 inches.

Step-by-step explanation:

1/2 x 6 = 3

If we multiply 1/2 by 6, then we must do the same to 15.

15 x 6 = 90.

6 0
3 years ago
X÷3 - 9 = 0 what is the value of x
andre [41]

Answer:

27.

Step-by-step explanation:

x/3 −9=0 Step 1: Simplify both sides of the equation. x/3 −9=0 1/3 x+−9=0 1/3 x−9=0 Step 2: Add 9 to both sides. 1/3 x−9+9=0+9 1/3 x=9 Step 3: Multiply both sides by 3. 3*( 1/3 x)=(3)*(9) x=27

3 0
3 years ago
A cone has a diameter of 18 units and a slant height of 15 units. Find the volume of the cone.​
Rasek [7]

Formula for volume:

πr^2(h/3)

Diameter divided by 2 is the radius

18/2 = 9

radius: 9 units

Use pythagorean theorem to find height

x^2 + 9^2 = 15^2

225 - 81 = 144

x^2 = 144

x = 12

height: 12 units

Plug these number in the volume formula.

Thus, it should be looking as:

π9^2(12/3) = 1017.88

Answer:

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A store sells mugs. Each mug cost the same amount.
Rom4ik [11]

Answer:

nobody won't be able to answer this without some more details.

4 0
3 years ago
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