Your school sells yearbooks every spring. The total profit p made depends on the amount x the school charges for each yearbook.
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♡ The Question/Task ♡
Classify the number -85.
Rational, Whole, Natural, Integer, Irrational.
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♡ The Answer ♡
-85 is an integer, and a rational number!
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♡ The Explanation/Step-By-Step ♡
Natural numbers are <u>positive integers</u> from 1 till infinity, though, nautral numbers don't include zero. Since -85 is a negative number, this wouldn't be a natural number.
A whole number is a set of numbers including <u>all positive integers and 0.</u> Since -85 isn't a positive number, this wouldn't be a whole number.
An irrational number is where any real number that cannot be expressed as the quotient of two integers. Irrational numbers are commonly square roots, too. Although, -85 isn't a square root.
A rational number is where any number that can be written as a ratio, or a fraction, of two integers can be classified as a rational number. Rational numbers are commonly fractions, decimals, negative decimals, etc!
An integer is a whole number that can be positive, negative, or zero. 85 is a whole number, and can be negative, which in this case, is -85. The number we're using. Therefore, -85 is an integer.
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