Question

Erika stated that -7.0 is not an integer because it has a decimal. Is she correct? Why or why not?

a) Yes, because integers cannot have decimals.
b) Yes, because negative numbers cannot be integers.
c) No, because -7.0 is still a whole number.
d) No, because decimals do not affect whether a number is an integer or not.

Answer 1

Erika is incorrect because -7.0 is still a whole number despite having a decimal, so it is an integer.

Step-by-step explanation:

Erika's statement that -7.0 is not an integer because it has a decimal is incorrect. Integers consist of all the whole numbers, including both the negative and positive numbers, as well as zero. The presence of a decimal does not always indicate that the number isn't an integer. In this case, the decimal is followed by a zero, which means -7.0 is equivalent to -7, and thus it is indeed an integer. The correct answer is: c) No, because -7.0 is still a whole number.