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3 years ago

What three consecutive integers equal 81

2 answers:

3 0

81 / 3 = 27
so middle number = 27
the other 2 are 26 and 28

answer
<span>26, 27, 28 are three consecutive integers equal 81</span>

Marat540 [252]3 years ago

3 0

The consecutive integers: n, n+1, n+2

That sum to 81:

n+n+1+n+2=81 combine like terms on left side

3n+3=81 subtract 3 from both sides

3n=78 divide both sides by 3

n=26

So the three numbers are 26, 27, and 28.

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The ratio of two numbers is 4:5 if the larger number is 300 what is the smaller number

yaroslaw [1]

Answer:

The smaller number is 240.

Step-by-step explanation:

The question says that the larger number is 300, so 5 has to be 300.

4:5

?:300

You can use cross-multiplication or find the scale factor to find the answer.

Cross-multiplication:

4 × 300 ÷ 5 = 240

Finding the scale factor:

300 ÷ 5 = 60

4 × 60 = 240

The smaller number is 240.

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2 years ago

A company prices its tornado insurance using the following assumptions:

ziro4ka [17]

Answer:

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Step-by-step explanation:

This is binomial

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3 years ago

How do you use protractors, its been printed on the paper, this is gonna be a little confusing for me sorry if I give this app a

Luda [366]

Answer:

see below

Step-by-step explanation:

A protractor is usually a transparent measuring device laid intended to be laid over an angle to be measured. The centerpoint of the protractor's scale is made to coincide with the angle's vertex, and the baseline of the protractor is aligned with one of the angle's rays. The appropriate scale is used to read the angle where the other ray crosses the scale. You usually have to visually determine if the angle is acute or obtuse, so you can choose the correct scale to read.

If you're drawing an angle, first draw one ray and locate the vertex on it. Then do the steps above as you would for measurement. Make a mark on your paper corresponding to the desired angle measure, and connect the vertex to that mark to create the other ray of the angle.

If you're working with a printed protractor, you may need to do your work on a piece of translucent paper or transparency material, so you can see the protractor scale through the page you're drawing on.

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<em>Comment on a printed protractor</em>

A protractor will only give accurate measurements if its geometry is perfect. Some printers will scale a figure differently in horizontal and vertical directions, so will make the protractor scale be elliptical instead of circular. That will give wrong readings.

7 0

3 years ago

If the test for a disease is accurate 82% of the time, how often will it come back negative if a patient has the disease?

aniked [119]

Would it just be 100 - 82 = 18, so D maybe?

4 0

3 years ago

Read 2 more answers

What is the value of the expression |a + b| + |c| when a = –3, b = 7, and c = –15?

nikdorinn [45]

We know:
$|a|= \left\{\begin{array}{ccc}a&if\ a \ \textgreater \ 0\\0&if\ a=0\\-a&if\ a \ \textless \ 0\end{array}\right\\\\|2|=2\\|0|=0\\|-3|=3$

$|a+b|+|c|$
substitute a = -3; b = 7; c = -15
$|-3+7|+|-15|=|4|+15=4+15=19$

3 0

3 years ago