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vichka [17]
2 years ago
13

The mean of 4 numbers is 32. If three of the numbers are 15, 21, and 75, what is the value of the fourth number?

Mathematics
2 answers:
labwork [276]2 years ago
7 0
The next number is going to be 17 Explanation
IgorLugansk [536]2 years ago
4 0
If the mean is 32 and there is 4 numbers
then the numbers add to 32x4 which is 128
128-15-21-75=17
fourth number is 17
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3 years ago
A quadrilaterals consecutive angles measure (3x+10), (9x+50), (4x), and (13x+10). Determine the value of x.
LuckyWell [14K]

The value of x is 10

Step-by-step explanation:

We know that the sum of internal angles of a quadrilateral is 360 degrees

So,

Given

Angle 1 = A1 = 3x+10

Angle 2 = A2 = 9x+50

Angle 3 = A3 = 4x

Angle 4 = A4 = 13x+10

So,

A_1+A_2+A_3+A_4 = 360\\(3x+10)+(9x+50)+(4x)+(13x+10) = 360\\3x+10+9x+50+4x+13x+10 = 360\\3x+9x+4x+13x+10+50+10 = 360\\29x+70 = 360

Subtracting 70 from both sides

29x+70-70 = 360-70\\29x = 290

Dividing both sides by 29

\frac{29x}{29} = \frac{290}{29}\\x = 10

Hence,

The value of x is 10

Keywords: Angles, Quadrilateral

Learn more about angles at:

  • brainly.com/question/725998
  • brainly.com/question/7128279

#LearnwithBrainly

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