An example of an integer is... - 4 is the opposite of 4, 21 is the opposite of - 21.
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NO, it is a decimal that can be represented as the fraction 1/4 but can never be written as n integer.
Oh, dude, you're hitting me with the math questions now? Alright, alright. So, an example of an integer that is not a whole number would be -3.5. It's an integer because it's a whole number, but it's not a whole number because of that pesky decimal hanging out at the end. Like, it's like a whole number with a little extra flair, you know?
An integer is a whole number. Nonnegative mean not negative. A nonnegative integer is a whole number that is not a negative number. For example, 0, 1, 2, 3, 4, 5,....
An integer is a whole number that can be positive, negative, or zero. In the context of "20 minutes less," if we start with a given integer x and subtract 20 minutes from it, the result will also be an integer. For example, if x = 30, then 30 - 20 = 10, which is also an integer.
It is a number that can be expressed as a fraction but is NOT an integer. For example. 3 is an integer and it is rational since we can write 3/1, but 1/3 is not an integer and it is rational since we wrote it as a fraction or a ratio. Remember that a rational number is one that can be written as A/B where A and B are integers. Now if B is 1, which is certainly an integer, A/1 is rational but since A is an integer, A/1 is an integer.