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3 years ago

13

What is a rational number? A.9 B.15 C.28 D.25

2 answers:

goldfiish [28.3K]3 years ago

6 0

Hi there! :) The answer to your question is all of them. A rational number is a number which can be written as a ratio. Ratios are basically fractions so the numerator and denominator are whole numbers. Whole numbers are 5,49, 688 a number WITH NO fraction. I hope I explained it well and it makes sense. ;)

Hope I helped! =)

Darina [25.2K]3 years ago

4 0

The answer is..........
A. 9

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Solve for x. 25 - 3x = -5(1 - x) - 2x

grandymaker [24]

Answer:

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Step-by-step explanation:

25 - 3x = -5(1 - x) - 2x

<u></u>

<u>We have to first get rid of the parenthesis:</u>

$-5 * 1$ ==> -5

$-5 * -x$ ==> 5x

<u>So now you should have:</u>

25 - 3x = -5 + 5x - 2x

<u>Combine like terms:</u>

25 - 3x = -5 + 5x - 2x

25 - 3x = -5 + 3x

<u>Add 3x to both sides:</u>

25 - 3x = -5 + 3x

+ 3x = + 3x

<u>And you should have:</u>

25 = -5 + 6x

<u></u>

<u>Add 5 to both sides:</u>

25 = -5 + 6x

+5 = +5

30 = 6x

<u>Divide 6 to both sides:</u>

$\frac{30}{6}$ = $\frac{6x}{6}$

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Step-by-step explanation:

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