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scoundrel [369]
2 years ago
13

I need help with this question thanks!

Mathematics
2 answers:
cluponka [151]2 years ago
7 0

Answer:

n=-10

Step-by-step explanation:

-3n+20=50 move constant to the right hand side

<em>-3n</em><em>=</em><em>5</em><em>0</em><em>-</em><em>2</em><em>0</em><em> </em><em>subtract</em><em> </em><em>the</em><em> </em><em>numbers</em>

<em>-3n</em><em>=</em><em>3</em><em>0</em><em> </em><em>divide</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>by</em><em> </em><em>-</em><em>3</em><em> </em><em>and</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>n</em><em>=</em><em>-</em><em>1</em><em>0</em>

Zepler [3.9K]2 years ago
6 0

Answer:

n= -10

Step-by-step explanation:

50-20= 30 so -3n=30. So n= -10.

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What is the answer?​
charle [14.2K]

Answer:

x = 20 but see below.

Step-by-step explanation:

Remark.

This is not well enough marked to know whether D = A or whether you have to do some algebra to find the relationship between A and D. So I will assume A = D and then I'll solve it so you have to manipulate A and D.

A = D

3x - 10 = 2x + 10                     Add 10 to both sides

3x - 10 + 10 = 2x + 10 + 10     Cancel

3x = 2x + 20                           Subtract 2x from both sides

3x-2x=2x-2x + 20

x = 20

A = E

If A = E then to find x you have to add 3 angles together.

E + D + 45 = 180                  Add the three angles of the triangle

E + D = 180 - 45                  Subtract  45 from both sides

E + D = 135                          Substitute for D and E

3x - 10 + 2x + 10 = 135        Combine like terms

5x = 135                              Divide by 5

x = 135 / 5

x = 27

Answer

I'd go with the first one.

5 0
3 years ago
In the previous lesson, you created SMART goals for yourself to extend from the start of the semester to the end of the semester
Aleks [24]

Answer:

Improve your growth attitude, be more proactive, learn to understand yourself, be persistent despite hurdles, learn to accept your limits, learn how to make successful decisions, practice thankfulness, and stay open-minded to new opportunities are some of the ways that SMART goals can assist you.

Step-by-step explanation:

I've done this before :)

8 0
3 years ago
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Erin is buying a tv with an original price of 650. She receives a 20% discount. How much will Erin pay, before tax, for the TV
r-ruslan [8.4K]

Answer:

$520

Step-by-step explanation:

20%

=0.2

0.2*650

=130

650-130

=520

5 0
3 years ago
The standard diameter of a golf ball is 42.67 mm. A golf ball factory does quality control on the balls it manufactures. Golf ba
katovenus [111]
The lower end of the range is
  42.670 - 0.002 = 42.668 mm

The upper end of the range is
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The range of acceptable values is 42.668 mm to 42.672 mm.
6 0
3 years ago
Read 2 more answers
“I think I can make it. I’ll just jump.” says Denis, flashing a grin as he looks to the neighboring rooftop.
Tasya [4]

Answer:

I likr=e the Story 12

Step-by-step explanation:

I really like how they jump and 1+1=2 right or is it 3???

Hmmm...

6 0
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