20 is between 10 and 30.
It is: 11
23 is an odd number between 10 and 30 that gives a remainder of 2 when divided by 7.
It is: 20
The square numbers between 10 and 30 are 16 and 25. These correspond to the squares of 4 (4² = 16) and 5 (5² = 25).
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
It is: 11
30
23 is an odd number between 10 and 30 that gives a remainder of 2 when divided by 7.
To find a number that can be squared to give a result between 10 and 30, we can start by finding the square roots of 10 and 30. The square root of 10 is approximately 3.16, and the square root of 30 is approximately 5.48. Therefore, any number between 3.16 and 5.48 when squared will give a result between 10 and 30. One such number is 4, as 4 squared is 16.
It is: 20
(10+20)/2 = 30/2 = 15
70-10=60. 60/2=30. 10+30 or 70-30=40. Answer 40
The square numbers between 10 and 30 are 16 and 25. These correspond to the squares of 4 (4² = 16) and 5 (5² = 25).
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
A number that has exactly an odd number of factors is a power of another number. A number between 10 and 30 that is a power is 16. It is 24 (as well as 42) and its factors are 1, 2, 4, 8, and 16.
37
perfect square numbers are 16 and 25