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mr_godi [17]
3 years ago
15

A number is between 20 and 30 and is three times the sum of its digits. what is the number?

Mathematics
2 answers:
Ganezh [65]3 years ago
7 0

Answer:

Ang answer units of the following numbers of 8 and

Phantasy [73]3 years ago
6 0

Answer:

The only multiples of 3 between 20 and 30 are 21, 24, and 27. Only 27 satisfies the condition that it is 3 times the sum of its digits.

Step-by-step explanation:

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Someone help pls!!! giving brainliest
maw [93]

Answer:

I think you can add 9 +8 to get your finial answer.

8 0
2 years ago
I NEED help on this problem
gulaghasi [49]
Insufficient data please indicate the question 
4 0
3 years ago
What is the domain of the function represented by the graph?
Natalija [7]

The domain of given function is: -3≤x≤3

Step-by-step explanation:

The domain is the set of all possible inputs of the graph. In a graph, the input values are plotted on x-axis and the output or range is plotted on y-axis.

In the given figure we can see that the x-values that are involved in the graph of function are between -3 and 3. So the domain of the function will be:

-3≤x≤3

Hence,

The domain of given function is: -3≤x≤3

Keywords: Domain, Range

Learn more about functions at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

5 0
3 years ago
Suppose that you need to create a list of n values that have a specific known mean. Some of the n values can be freely selected.
Leno4ka [110]

As the problem indicates, degrees of freedom are the number of values ​​that can be independently selected before it is necessary to choose specific values ​​to arrive at the desired result.

The average, on the other hand, results from the sum of a list of values ​​divided by the amount of values ​​in the summed list.

Assume that the mean sought is x and consider that the list is composed of a single element a, in that case no random number can be selected, since the mean x must correspond to that number.

If the list were composed of two elements a and b, one of the two values ​​could be chosen randomly, and according to the chosen value the second should be the one whose sum with the previous one results in 2x, this given that the formula of the average \sum\limits_{i=1}^n \frac{ x_{i}}{n}.

With three values ​​a, b and c, it is possible to select two freely, since the thirteen must be the one that balances the sum of a+b, that is (a + b) + c = 3x.

Thus, in general, with n values, it is possible to select n-1 values ​​freely whose sum must be balanced by the last value so that the whole sum is nx.

Answer

In a list of \bf{n} values ​​you can assign \bf{n-1} values ​​freely, that is, you have n-1<em>degrees of freedom.</em>

6 0
3 years ago
What is the domain of the function
Delvig [45]
5. D (the number under the square root symbol must be greater than or equal to 0. 


6 0
3 years ago
Read 2 more answers
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