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1 year ago

Ow many decimals numbers are there whose value equals the average of their digits?

Mathematics

1 answer:

kiruha [24]1 year ago

6 0

Answer:

Step-by-step explanation:

there are infinite numbers between 2 and 3 having average=2.5

2.49,2.51

2.48,2.52

2.47,2.53

2.46,2.54

.................

2.491,2.509

2.492,2.508

2.493,2.507

......................

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At the skating rink, 6 out 10 skaters were able to skate under the limbo bar. Which names the fraction of skaters who were not a

Tasya [4]

2/5 because 10/10 minus 6/10 equals 4/10 which reduces to 2/5

7 0

2 years ago

. The teacher decides that no student can win twice, so she removes the tickets of the first winner before drawing the second wi

kozerog [31]

Answer:

<h2>There is 8% probability of Kitzen winning first and Ava second.</h2>

Step-by-step explanation:

The given table shows that there are 4 students, so there are 4 possible winner in total, but they have different number of tickets.

The total number of tickets is 48, that's the total possible outcomes. Kitzen has a probability of

$P_{Kitzen}=\frac{12}{48}=\frac{1}{4}$

Ava has a probability of

$P_{Ava}=\frac{16}{48}=\frac{1}{3}$

Now, the probability of having one event and the other is

$P=\frac{1}{4} \times \frac{1}{3}=\frac{1}{12} \approx 0.08$

Therefore, there is 8% probability of Kitzen winning first and Ava second.

(Notice that the probaility is not about Kitzen or Ava winning, it's about winning both, that's why the percentage is low)

7 0

2 years ago

What is the least common denominator of 1/8 and 2/3

I am Lyosha [343]

The LCD for 1/8 and 2/3 is 24 sorry if im wrong

6 0

2 years ago

Harold and cindy both found the sum of two 4-digit numbers, but their results were not the same. if kent made an error of additi

Fiesta28 [93]

<span>The difference between the larger result and the smaller result was 10.

Suppose the 4 digits numbers are abcd and pqrs

Here, 1st Number is = 1000*a + 100*b + 10*c + d
and 2nd</span> Number is = 1000*ap + 100*q + 10*r + s

Then, since Kent made an error if 1 in tens columns and Harold added it correct, so the difference will be of 10 points.

7 0

2 years ago

Read 2 more answers

NOTE -- THIS QUESTION HAS BEEN ANSWERED ALREADY!!!

DanielleElmas [232]

Answer:

The cubic polynomial is: x³ - x² - 6x.

Step-by-step explanation:

Given the degree and the roots of the polynomial we can find it.

An n - degree polynomial has n roots.

Here, given that the degree of the polynomial is 3 and three roots are given. Also, if (x - a) is a factor of a polynomial then x = a is a root of the polynomial. The converse is also true.

Since, the roots of the polynomial are given to -2, 0, 3 then it should have had the following factors.

(x + 2)(x - 0)(x - 3) = 0

Multiplying them we get:

⇒ $(x^2 + 2x)(x - 3)$

$= x^3 - 3x^2 + 2x^2 - 6x$

$= x^3 - x^2 - 6x$ which is the required cubic polynomial.

Hence, the answer.

4 0

2 years ago