Rules for rational numbers

Mathematics

2 answers:

beks73 [17]4 years ago

5 0

A rational number is any number that can be written as a/b

cestrela7 [59]4 years ago

3 0

Rational Numbers
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers.

The number 8 is a rational number because it can be written as the fraction 8/1.
Likewise, 3/4 is a rational number because it can be written as a fraction.
Even a big, clunky fraction like 7,324,908/56,003,492 is rational, simply because it can be written as a fraction.
Every whole number is a rational number, because any whole number can be written as a fraction. For example, 4 can be written as 4/1, 65 can be written as 65/1, and 3,867 can be written as 3,867/1.

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Could someone please help me solve this problem?

Iteru [2.4K]

Hello!

Answer:

n=-9

*The answer must have a negative sign.*

Step-by-step explanation:

First, you subtract by 7 from both sides of an equation.

$7+2n-7=-11-7$

Then, you simplify.

$2n=-18$

Next, you divide by 2 from both sides of an equation.

$\frac{2n}{2}=\frac{-18}{2}$

And finally, simplify and solve. You can also dividing into the groups.

$18/2=9$

$n=-9$

Hope this helps!

-Charlie

Have a great day!

Thanks!

4 0

3 years ago

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Leya [2.2K]

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4 years ago

When the outliers are removed, how does the mean change?

vagabundo [1.1K]

Answer:

The mean increases by 3.

Step-by-step explanation:

What's an outlier?

An outlier is a data point that's very different from the other data points. In this example, the outlier is 50, as the other data points are around the number 80.

What's the mean of a data set?