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mestny [16]
3 years ago
15

This question that I need to help on is Unknown angle problems (with Algebra)​

Mathematics
2 answers:
frutty [35]3 years ago
6 0

Answer: x=20

Step-by-step explanation:

The entire thing is equal to 180 degrees. so, 100+3x+x=180, which can be simplified to 100+4x=180. If we subtract 100 from both sides, we get 4x=80, 80 divided by 4 is 20, so x=20

Lapatulllka [165]3 years ago
6 0

Answer:

x=20

Step-by-step explanation:

Let us start by making an equation:

4x+100=180

Solving for x: 4x=180-100

4x=80

x=20

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Nostrana [21]
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4 years ago
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How much material is used
Neko [114]
This question is essentially asking you to find the surface area of the box.
The formula for SA on a rectangular prism is: 2(L*W+L*H+W*H)
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Lets input the information we know:
2(20*8+20*30+8*30)
Follow BEDMAS
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Hope this helps!
-Benjamin
5 0
4 years ago
If x = 8 and n = 3, Evaluate the following expression: 3x - 3n + 2
Firlakuza [10]

Answer:

7

Step-by-step explanation:

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5 0
3 years ago
Shelby made $200 from selling candy bars. Large, x, candy bars sell for $4 each and smaller, y, candy bars sell for $2 each. Wri
babymother [125]

Answer:

The Equation is

4x+2y= 200

Then total number of candy bars is

X+Y

Step-by-step explanation:

Shelby made $200 from selling x at $4 each and y at $2 each.

Let's have in mind that x is the number of large candy bars

And y is the number of small candy bars

The equation is simple

The amount it was sold is going to be the coefficient of the numbers we don't Know...

So

Equation is

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Then total number of candy bars is

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8 0
3 years ago
What plus 18 equals 45?
natali 33 [55]
Okay to find what 18+?=45 just subtract 18 from 45. ANSWER: 27
8 0
3 years ago
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