The numbers are 55, 56 and 57 OR 54, 56 and 58
57 is a rational number
It is 260.
This is the commutative property. In symbols a+b = b +a and ab=ba for any numbers a and b.
None, since 57 is NOT an irrational number.
The sum of the first 57 natural numbers is 1,625.
A single number can have only one sum: in this case, 57.
No.
57
x+21 = 57
The sum of two evens is even so the sum of any number of evens is even. It is, therefore, impossible for the sum of three even numbers, whether or not consecutive, to be 57, which is an odd number.
57
57.
57.
An even number less than 57.
The way you actually wrote it: x+2(57). This is just x+114 and does not help you find x.The way I think you meantto write it: x+2x=57. 3x=57. x=19
57 or 75