Yes, -3 is both a rational number and an integer.
It can be both.
-16 is both a negative integer and a rational number
Every integer is.
Yes and yes. It is an integer and so it is also a rational number.
By definition, an irrational number is a number that is not rational, or in other words a number that cannot be expressed as an integer divided by another integer. A number cannot be both "rational" and "not rational."
All integers are rational numbers.
No.
both
9.0 is both an integer and a rational number. As an integer, it is a whole number without any fractional or decimal parts. As a rational number, it can be expressed as a fraction where the numerator is 9 and the denominator is 1, making it a ratio of two integers.
An integer is a whole number. For instance, 1, 2, 3... There is no decimal part. So 23 is an integer. A rational number is a number that can be written as a/b. 23 can be written as 23/1, so 23 is a rational number. Thus, 23 is BOTH an integer and a rational number.
15 is both rational, and an integer. is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.