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blondinia [14]
3 years ago
6

If x + y =6, y +z = 7 and z + x =9, what is the average (arithmetic mean) of x,y and z?

Mathematics
1 answer:
nadya68 [22]3 years ago
8 0

Answer:

\frac{22}{3}

Step-by-step explanation:

x + y + y + z + z + x = 2x + 2y + 2z = 22

x + y + z = 22

22 ÷ 3 = \frac{22}{3}

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Answer: The answer is B

Step-by-step explanation: I got the answer right

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The total weight of the fish tank in a tank of tropical fish at fish in fur was seven eights pounds. Each with 164 pounds. After
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386 is the answer.................................
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2 years ago
ASNWER CORRECTLY AND YOU WILL GET 40 POINTS ALONG WITH BRAINLIEST
FromTheMoon [43]

Answer:

60

Step-by-step explanation:

What we know:

  • ABD is a straight angle, it measures 180 degrees
  • Angle CBA + CBD = 180 degrees
  • Angle GFH = CBA (they are alternate exterior angles)

Equation:

GFH + CBD = 180

Substitute:

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3x + 6x = 180

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Divide:

9x = 180

/9     /9

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GFH = 3x

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8 0
3 years ago
john scored 15 points his first game. In his last game he scored 20 points. What was his percent of increase?
iVinArrow [24]

\huge\mathrm{ \it{Answer࿐}}

  • Increase = 20 - 15 = 5 points

  • \boxed{ \% \: increase \:  = \frac{5}{15} \times 100  }

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_____________________________

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6 0
2 years ago
Part 1: How's the weather? A. Investigate the weather forecast in your city. Record the high and low temperatures that are forec
victus00 [196]

Using the mean concept, it is found that:

1. The mean change in the forecasted high temperatures is of -0.33ºC.

2. The mean change in the forecasted low temperatures is of 0.5ºC.

-----------------------------

The mean of data-set is given by the <u>sum of all observations divided by the number of observations.</u>

Item 1:

The changes in the high temperature are: 2, 1, -1, -1, -1, -2

Thus:

M = \frac{2 + 1 - 1 - 1 - 1 - 2}{6} = -0.33

The mean change in the forecasted high temperatures is of -0.33ºC.

Item 2:

The changes in the low temperature are: 2, -2, 2, 1, 0, 0.

M = \frac{2 - 2 + 2 + 1 + 0 + 0}{6} = 0.5

The mean change in the forecasted low temperatures is of 0.5ºC.

A similar problem is given at brainly.com/question/24754716

3 0
2 years ago
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