11, you can write the question in the form of x=-2x+33, then add 2x to both sides to get 3x=33, now divide both sides by 3 and you get x=11.
half a number
True
Twice the number is something like 3x2, 4x2.... Squared is 3x3, 4x4. It's one number multiplied by itself twice
no its when its multiplied by itself 3 times for instance 33 is 3x3x3 which is 27.
If a number is added to itself, it is twice that number → 18 ÷ 2 = 9 → 9 + 9 = 18
half a number
True
Twice the number is something like 3x2, 4x2.... Squared is 3x3, 4x4. It's one number multiplied by itself twice
You would need to divide by -1/2.
negative 2
In a perfect number, the sum of all the factors (including the number itself) is twice the number. E.g., the sum of the factors of 6 is 1 + 2 + 3 + 6 = 12 (equal to 2 x 6). Every prime number has two factors: 1, and itself. So, the sum of the factors is only one more than the prime number itself; for any number greater than 1, this can't be twice the number. For example, the prime number 7 has the factors 1 and 7, which add up to 8.
no its when its multiplied by itself 3 times for instance 33 is 3x3x3 which is 27.
There are two consecutive odd numbers such that five times the smaller plus twice the greater is 25. What is the smaller number?
If a number is added to itself, it is twice that number → 18 ÷ 2 = 9 → 9 + 9 = 18
To find the number that, when multiplied by itself twice, equals 225, you need to find the square root of 225. The square root of 225 is 15. Therefore, the number you are looking for is 15. When you multiply 15 by itself twice (15 x 15 x 15), you get 225.
A cube of a number is when you multiply it by itself twice. Eg) 2 cubed = 2x2x2=8
It is not clear what "greater" means. In terms of atomic number (number of protons in the nucleus) there is not even an element which is twice as great.