3 years ago

The average of 4 numbers is 5. What is their sum? explain you answer

1 answer:

8 0

To find an average you add all numbers together then divide by the amount of numbers that you added. So if there are 4 numbers you would divide by 4. By going backwards you can find the answer. Multiply 5 by 4 and you get 20, which is the answer.

You might be interested in

Please simplify n-2/n^2-4

Doss [256]

Answer:

$\frac{1}{ {n} + {2}}$

Step-by-step explanation:

$\frac{n - 2}{ {n}^{2} - 4} \\ \\ = \frac{n - 2}{ {n}^{2} - {2}^{2} } \\ \\ = \frac{n - 2}{ ({n} + {2})({n} - {2})} \\ \\ = \frac{1}{ {n} + {2}} \\$

8 0

3 years ago

The distribution of the time it takes for different people to solve a certain crossword puzzle is strongly skewed to the right,

dezoksy [38]

<span>Answer: Skewed to right with mean 0 and S.D. 1 Explanation: Let's assume the z-scores as a linear transformation. then z=(x-mean)/S.D. = (x-30)/15 z(mean) = (30-30)/15= 0 z(sigma) = 15/15 = 1 Note: Shape does not change.</span>

5 0

3 years ago

Find the volume of the following cone. Use 3.14 for n and

fenix001 [56]

28 m because it is the smallest number

4 0

2 years ago

In figuring is net income Mr. Hall kids listed his salary income of $15,000, $258 from dividends, and $2562 from the sale of pro

Elan Coil [88]

To find net income, find the money mr. hall gained, and subtract how much he loss

Gains:
$15,000 $1346
$258 $1598
$2562 $48

total: $17,280

Losses:
$1346
$1598
$48

total: $2992

17,280 - 2992=
$14,288 net income

5 0

3 years ago

Find the product 2.25x0.04=?

Debora [2.8K]

The product to 2.25 x 0.04 is 0.09

3 0

3 years ago

Read 2 more answers