To any set that contains it! It belongs to {45}, or {45, sqrt(2), pi, -3/7}, or all whole numbers between 43 and 53, or multiples of 5, or composite numbers, or counting numbers, or integers, or rational numbers, or real numbers, or complex numbers, etc.
45 times 17.
The median is 50. Put the numbers in ascending numerical order: 40 45 48 52 61 65 For a set of numbers with an odd number of observations, the median would simply be the middle number. Because this set of numbers has an even number of observations, we take the middle two observations (48 and 52) and find their average. To find the average you add the observations and divide by the number of observations. In this case you would take 48 added to 52 and divide the sum of these numbers by 2. This gives you an answer of 50. (48 + 52 = 100 / 2 = 50)
The question is incorrect since the mean of 45 57 0 and 3 is not 30. And the value of 45 is 45, whatever its mean when combined with other numbers. Similarly, the value of 57 is 57, whatever its mean when combined with other numbers; etc.
Working only with positive numbers*, any of the following would do. 1 + 47 2 + 46 3 + 45 4 + 44 5 + 43 6 + 42 7 + 41 8 + 40 9 + 39 10 + 38 11 + 37 12 + 36 13 + 35 14 + 34 15 + 33 16 + 32 17 + 31 18 + 30 19 + 29 20 + 28 21 + 27 22 + 26 23 + 25 24 + 24 * if negative numbers are allowed then there is an infinite range 49 - 1 50 - 2 51 - 3 ... and so on in an endless sequence adding 1 to each value.
45 + 45
45 + 46 = 91.
3, -15
59
-51
183
40 + 45
There is only one number that equals 45.That number is: 45
15 and -3
1*45=45 3*15=45 5*9=45
Guess and check to find two numbers that equal 45.
39 and 84.