To which set or sets of numbers does the number -5 belong

1 answer:

7 0

Well, the largest set it belongs to is the set of all real numbers - numbers which can be written on the number line. -5 is of the set of rational numbers since it can be written as a fraction (-5/1 for example). It is an integer since it is a whole number. Thus:

-5 ∈ ℤ (Integers) ∈ ℚ (Rational Numbers) ∈ ℝ (Real Numbers)

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mixas84 [53]

Given:

Initial price of the stock=$43.85

Change for the first two days=+$2.70

Change for next two days=-$1.10

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The objective is to find the price at the last day.

Let's take the price at final day as x.

$\begin{gathered} x=43.85+2.70+2.70-1.10-1.10-4.45 \\ x=42.6 \end{gathered}$

Hence, the price of the stock at the last day is $42.6

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