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malfutka [58]
3 years ago
15

A cube has a surface area of 216 square inches. what is the edge length of the cube?​

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

  6 inches

Step-by-step explanation:

For an edge length of s, the six square faces of the cube add to an area of ...

  cube area = 6s²

Filling in the given information and solving for s, we get

  216 = 6s²

  36 = s² . . . . . divide by 6

  √36 = s = 6 . . . . take the square root

The edge length is 6 inches.

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Find the amount of the sales tax and the total cost. Cost of Item $200 Tax Rate 8​% How much is the sales​ tax? What is the tota
Mariulka [41]
Cost=$200
sales tax rate, r= 8%
tax=cost*r=$200*0.08=$16
total cost = cost+tax=$200+$16=$216

3 0
3 years ago
Out of a class of 150 students, two-fifths opted for German classes and one-third opted for Italian classes. The remaining opted
Yuliya22 [10]

Fraction of students that opted for French = \frac{4}{15}

The total number of students = 150

Fraction of students that opted for German = \frac{2}{5}

Fraction of students that opted for Italian = \frac{1}{3}

Fraction of students that opted for French = 1 - Fraction of students that opted for German - Fraction of students that opted for Italian

Fraction of students that opted for French = 1-\frac{2}{5} - \frac{1}{3}

Fraction of students that opted for French = \frac{15-6-5}{15}

Fraction of students that opted for French = \frac{4}{15}

Learn more here: brainly.com/question/18819021

8 0
3 years ago
The cost of 4 belts and 5 ties is $247. Each time costs 3 times as much as a belt. What us the total cost of 1 belt and 1 tie
Makovka662 [10]

Answer:

The total cost of 1 belt and 1 tie is $13 and $39 respectively.

Step-by-step explanation:

Given that,

The cost of 4 belts and 5 ties is $247.

Each tie costs 3 times as much as a belt.

Let the cost of a belt is x and that of a tie is y.

ATQ,

4x + 5y = 247 ...(1)

y = 3x ....(2)

Put the value of y from equation (2) in equation (1)

4x + 5(3x) = 247

4x + 15x = 247

19x = 247

x = 13

Put the value in equation (2)

y = 3x

= 3(13)

= 39

So, the total cost of 1 belt and 1 tie is $13 and $39 respectively.

5 0
3 years ago
With my math and it has strawberries and grapes
kvv77 [185]

Answer:

9 total

3 strawberries

6 blueberries

Step-by-step explanation:

We have 9 berries

3 are strawberries

9-3 = 6

That leaves 6 to be blueberries

9 total

3 strawberries

6 blueberries

3 0
3 years ago
Read 2 more answers
Find the missing numbers... (2cubed)cubed =2?
kotegsom [21]
((2)^3)^3 = 2^(3*3) = 2^9

hope this will help you 
7 0
3 years ago
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