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Is the number $-7 + -9$ rational or irrational? $\newline$ Choices: $\newline$ (A) rational $\newline$ (B) irrational

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Classify rational and irrational numbers

Full solution

Q. Is the number

-7 + -9

rational or irrational?

\newline

Choices:

\newline

(A) rational

\newline

(B) irrational

Evaluate $-7 + -9$ : Evaluate $-7 + -9$ . $\newline$ Add $-7$ and $-9$ together. $\newline$ $-7 + -9 = -16$
Add $-7$ and $-9$ : We found: $\newline$ $-7 + -9 = -16$ $\newline$ Identify whether $-7 + -9$ is a rational or irrational number. $\newline$ $-16$ is a whole number, and all whole numbers are rational numbers. $\newline$ Therefore, $-7 + -9$ is a rational number.

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