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spayn [35]
3 years ago
11

An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are s

hown below:
y = x + 20
y = −x + 2

Which is a correct step to find x and y?

a) Multiply the equations to eliminate y.
b)Add the equations to eliminate x.
c) Write the points where the graphs of the equations intersect the x-axis.
d) Write the points where the graphs of the equations intersect the y-axis.
Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0

Answer:

b)Add the equations to eliminate x.

Step-by-step explanation:

y= x+20

y= - x+2

Result of the addition: (-x cancels x)

2y = 22

y =11

11=x +20            -9 = x

11=9+2

11 = -9 +20

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Answer:19683x

Step-by-step explanation:

Evaluate the exponent

27.93x

27.729x

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7 0
2 years ago
Use the figure to find the measure of angle 2.
ale4655 [162]

Answer:

∠ 2 = 70°

Step-by-step explanation:

110° and ∠ 1 are corresponding angles and congruent, thus

∠ 1 = 110°

∠ 1 and ∠ 2 are adjacent angles and are supplementary, thus

∠ 2 = 180° - ∠ 1 = 180° - 110° = 70°

7 0
3 years ago
Expand 3(n+6)<br> This for the test
MrRa [10]

Step-by-step explanation:

expanded = 3n + 18

<em>plz </em><em>mark</em><em> my</em><em> answer</em><em> as</em><em> brainlist</em><em> plzzzz</em><em> if</em><em> you</em><em> find</em><em> it</em><em> useful</em><em> ☺️</em><em>.</em>

8 0
2 years ago
The data set shown below represents the number of times some families went out for dinner the previous week. 4, 2, 2, 0, 1, 6, 3
Mkey [24]

Dot plots are used to represent data using dots

The true statements about the dataset are:

  • The range of the number line should be 0 to 7 to represent the frequency.
  • Four families said they ate out twice the previous week.
  • One family said they ate out 5 times the previous week

The dataset is given as:

4, 2, 2, 0, 1, 6, 3, 2, 5, 1, 2, 4, 0, 1

Rearrange in ascending order

0, 0, 1, 1, 2, 2, 2, 2, 4, 4, 5, 6

Represent as a frequency table

Data     Frequency

0               2

1                2

2                4

3               0

4               2

5               1

6               1

See attachment for the dot plot

From the attachment, we can see that:

  • 4 has a frequency of 2
  • 5 has a frequency of 1

Also, the range on the dot plot can be 0 to 7, because it covers the given dataset

Hence, the true statements are: (a), (b) and (c)

Read more about dot plots at:

brainly.com/question/21862696

7 0
3 years ago
Read 2 more answers
I need help please and thank you
Ede4ka [16]

680 exponent 3. you have to multiply and divide so..... yea

3 0
3 years ago
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