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Rina8888 [55]
4 years ago
9

Darnelle drew this figure and the accompanying equations.

Mathematics
2 answers:
lawyer [7]4 years ago
7 0
180=w+x+y and 180=y+z so

w+x+y=z+y so subtract y from both sides

w+x=z
True [87]4 years ago
3 0

Answer:

The correct option is D  w + x = z

Step-by-step explanation:

Consider the provided equations.

y + z = 180

Solve the equation for y.

y= 180-z

Now substitute the vlaue of y in w + x + y = 180

w + x + 180-z = 180

Subtract 180 from both sides.

w + x + 180-180-z = 180-180

w + x -z = 0

Add z to both sides.

w + x -z+z = z

w + x= z

Hence, the correct option is D  w + x = z

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The last time andy went bowling he had a mean score of 158 per game.
ahrayia [7]
Yes.
473 + 161/4 = 634/4 = 158.5
8 0
3 years ago
Solveeee both i neeeeeedddd hellllpppp
SCORPION-xisa [38]
Short answer: C
Remark
Since b is all by itself in equation 2, Substitute it into equation 1.

2a + 3b = 5
b = a - 5                       Put this result in equation 1. Be sure and use brackets.
2a + 3(a - 5) = 5          Remove the brackets.
2a + 3a - 15 = 5           Notice the -5 inside the brackets becomes - 15
                                    Combine like terms on the left.    
5a - 15 = 5                   Add 15 to both sides
5a = 5 + 15
5a = 20                        Divide by 5
a = 20/5
a = 4

So far, c is the only possible answer.
b = a - 5
b = 4 - 5
b = - 1






5 0
3 years ago
Finding the missing angles ?
bazaltina [42]

Answer:

1. 46

2. 46

3. 134

4. 134

5. 46

6. 46

7. 134

This is going from top right, left to right.

8 0
2 years ago
Solve the following system of equations. <br><br> 18x+6y=3018x+6y=30<br> 18x+22y=1418x+22y=14
Triss [41]

Answer:

  • (2, -1)

Step-by-step explanation:

<u>Given system</u>

  • 18x+6y=30  
  • 18x+22y=14

<u>Solve by elimination, subtract the equations and solve for y:</u>

  • 18x + 6y - 18x - 22y = 30 - 14
  • -16y = 16
  • y = -1

<u>Find x by substituting y:</u>

  • 18x + 6(-1) = 30
  • 18x - 6 = 30
  • 18x = 36
  • x = 36/18
  • x = 2

<u>The answer is</u>: (2, -1)

4 0
3 years ago
A car travels 65 km in 1 hour. what is its average speed in meters per second?
deff fn [24]
<span>Its speed is 18.05 m/s</span>
7 0
4 years ago
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