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pychu [463]
3 years ago
13

When 80​% of a number is added to the​ number, the result is 216.

Mathematics
2 answers:
son4ous [18]3 years ago
5 0
I believe that the answer is 120.

Using this formula:


<span>x+0.8x=216 1.8x=216 x=120</span>
Troyanec [42]3 years ago
3 0
The number you are looking for is 120 and you can easily calculate it by solving the following equation with respect to x
x+0.8 x = 216
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Alexandra [31]
-3y +4 = -11
-4 -4

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3 years ago
What is 4 over 6 divided by 2 over 4?
djverab [1.8K]
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A line has a slope of 8 and includes the points (1, z) and (2,8). What is the value of z?
NISA [10]

The value of z is zero

Step-by-step explanation:

The slope is the steepness of the line.

The formula for slope is given by:

m=\frac{y_2-y_1}{x_2-x_1}\\Here\\(x_1,y_1)\ are\ the\ coordinates\ of\ first\ point\ on\ line\\(x_2,y_2)\ are\ the\ coordinates\ of\ second\ point\ on\ line

Here

(x1,y1) = (1,z)

(x2,y2) = (2,8)

So,

m=\frac{y_2-y_1}{x_2-x_1}\\8 = \frac{8-z}{2-1}\\8=\frac{8-z}{1}\\8-8 = -z\\z = 0

The value of z is zero

Keywords: slope, Line

Learn more about slope at:

  • brainly.com/question/10879401
  • brainly.com/question/10940255

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6 0
2 years ago
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Alik [6]
For this triangle in particular, we can use the special rules of a 30-60-90 triangle

This says:
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The opposite side of 60° is: x * sqrt(3)
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We have our side length for 90° so we just have to work backwards
To find our 30° side length we must divide by 2
8/2 = 4
Which means your y = 4

Now that we have our 30° side length we can just multiple it by sqrt(3)

That means your x = 4 sqrt(3)
6 0
3 years ago
Read 2 more answers
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Lady_Fox [76]

Answer:

5 × 1.6 = 8. The answer is 8 pounds.

Step-by-step explanation:

If you multiply 5 and 1.6, you get 8.

5 0
3 years ago
Read 2 more answers
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