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3 years ago

What is this equation problem 3n+16=7n

Mathematics

2 answers:

Monica [59]3 years ago

7 0

If you mean what is n, then n = 4

galben [10]3 years ago

7 0

So I'm pretty good at these, so I'll put it in the best detail I can. I'm guessing you need to solve for n.

So here's your problem:
3n+16=7n

First off, you should switch it around so you don't have to deal with negatives:
7n=3n+16

Subtract 3n from both sides:
4n=16

Divide both sides by 4
n=4

That would be your answer, n=4. Hope this helps, have a wonderful day!

(brainliest is always appreciated)

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3 years ago

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torisob [31]

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2 years ago

If EF bisects angle CEB, angle CEF=7x + 21 and angle FEB = 10x - 3, find the measure of DEB.

morpeh [17]

Answer: DEb = 26°

Step-by-step explanation:

Given information

CEF = 7x + 21

FEB = 10x - 3

Given expression deducted from the definition of the bisector

FEB = CEF

Substitute values into the expression

10x - 3 = 7x + 21

Subtract 7x on both sides

10x - 3 - 7x = 7x + 21 - 7x

3x - 3 = 21

Add 3 on both sides

3x - 3 + 3 = 21 + 3

3x = 24

Divide 3 on both sides

3x / 3 = 24 / 3

x = 8

Find the sum of the angle of CEF and FEB

7x + 21 + 10x - 3

=7 (8) + 21 + 10 (8) - 3

=56 + 21 + 80 - 3

=77 + 80 - 3

=157 - 3

=154

Subtract 154 from the straight angle

DEB = 180 - 154

$\boxed{DEB = 26}$

Hope this helps!! :)

Please let me know if you have any questions

8 0

2 years ago

What are the two point plz help me

evablogger [386]

Your first point should always be shown in the y-intercept following the standard form for slope-intercept form

Y = mx + b

b = y - intercept

In this case your first point would be (0,1)

You next point would be following the slope which is -2x. When you graph a equation always know that it is rise over run. For this line, it would be going from left to right since it is a negative line.

Your second point would go down 2 points from your starting point (0,1) and run 1 to the right in the x-axis, which is also called, (1,-3)

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3 years ago

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Shkiper50 [21]

Sample space is all possible outcome of an event.and denotes in a set form{}

If u flipa coin twice then sample space={HH,TT,HT,TH}

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3 years ago