Answer:
A prime number is a number that can be divided only by 1 and itself. This means that the number has exactly two factors. For example, 13 is a prime number because 13 can only be divided evenly by 1 and 13. If the number has more than two factors, we say that the number is composite.
Step-by-step explanation:
Answer: x is greater than or equal to 16
Answer: 47 and 16
Step-by-step explanation:
- Make Two Equations
x + y = 63
x - y = 31
- Set one of the equations equal to one of the variables
x + y = 63
x = 31 + y
- Substitute the equation back into the other one
(31 + y) + y = 63
31 + 2y = 63
2y = 32
y = 16
- Substitute the answer back into the equation
x + y = 63
x + 16 = 63
x = 47
