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2 years ago

Which number line correctly shows 1.5 + 2.5?

Mathematics

2 answers:

kirill [66]2 years ago

6 0

<h3><u>Answer:</u></h3>

Number line A

<h3><u>Explanation:</u></h3>

<u>The number line shows the correct total, which is 4. The others don't have the correct sum. 1.5 + 2.5 will always equal 4. Therefore, Number line A represents 1.5 + 2.5.</u>

Hoped this helped.

$BrainiacUser1357$

Juli2301 [7.4K]2 years ago

4 0

Answer: The first one.

Step-by-step explanation:

Since 1.5 + 2.5 = 4, and the only graph that has an arrow pointing to 4 is the first one, then the first number line is the correct answer.

Hope this helps :)

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Let us simplify our given expression.

Using exponent property $a^m\cdot a^n=a^{m+n}$ , we will get:

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Now to write our answer in scientific notation, we need our 1st multiple between 1 and 10. So we will rewrite our expression as:

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2 years ago

What is the difference of 8 times a number r and 12?

lapo4ka [179]

Answer:

The difference of 8 times a number r and 12 is solved for a number r and is given by $r=\frac{3}{2}$

Step-by-step explanation:

Given problem is the difference of 8 times a number r and 12

It can be written as

$(8\times r)-12$

To simplify the above expression :

8r-12

$8r-12=0$

$8r-12+12=0+12$ ( using addition property of equality )

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$8r(\frac{1}{8})=12(\frac{1}{8})$ (using division property of equality )

$r=\frac{3}{2}$

Therefore $r=\frac{3}{2}$

Therefore the difference of 8 times a number r and 12 is solved for a number r and is given by $r=\frac{3}{2}$

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