1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nikolay [14]
3 years ago
13

How to solve a problem using elimination when there are three equations?

Mathematics
1 answer:
vodomira [7]3 years ago
5 0
It's just going to require more work but eventually it will solve out, just treat it as if it was just two. 
You might be interested in
Consider the following sample set of scores. Assume these scores are from a discrete distribution. 21 29 32 38 38 45 50 64 72 10
ASHA 777 [7]

Answer:

Original data: 21 29 32 38 38 45 50 64 72 100

\bar X = \frac{21+29+32+38+38+45+50+64+72+100}{10}=48.9

Mode =38.

Median = \frac{38+45}{2}=41.5

Change 1: 2 29 32 38 38 45 50 64 72 100

\bar X = \frac{2+29+32+38+38+45+50+64+72+100}{10}=47

Mode =38.

Median = \frac{38+45}{2}=41.5

Change 2: 29 32 38 38 45 50 64 72 100

\bar X = \frac{29+32+38+38+45+50+64+72+100}{9}=52

Mode =38.

Median = 45

Step-by-step explanation:

Original data: 21 29 32 38 38 45 50 64 72 100

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{10} X_i}{10}

And if we replace we got:

\bar X = \frac{21+29+32+38+38+45+50+64+72+100}{10}=48.9

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have an even number of points the median is calculated as the average between the observations 5 and 6 from the dataset ordered.

Median = \frac{38+45}{2}=41.5

Change 1: 2 29 32 38 38 45 50 64 72 100

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{10} X_i}{10}

And if we replace we got:

\bar X = \frac{2+29+32+38+38+45+50+64+72+100}{10}=47

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have an even number of points the median is calculated as the average between the observations 5 and 6 from the dataset ordered.

Median = \frac{38+45}{2}=41.5

Change 2: 29 32 38 38 45 50 64 72 100

Now the sample size is 9 instead of 10

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{9} X_i}{9}

And if we replace we got:

\bar X = \frac{29+32+38+38+45+50+64+72+100}{9}=52

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have odd number of points the median is calculated from the 5 position of the dataset ordered.

Median = 45

7 0
4 years ago
PLEASE HELP MEEEEeeeeeee
brilliants [131]

Step-by-step explanation:

Children have rights in order to ___________________________

3 0
3 years ago
PLEASE HELP ME RNNNNN!!!!!! I NEED THE ANSWERS
Vaselesa [24]

Answer:

pretty sure its A

Step-by-step explanation:

7 0
2 years ago
Which notation best represents the phrase “at least 24”?
Mars2501 [29]
Greater than of equal to sign "<span>≤" 
</span>
8 0
3 years ago
Read 2 more answers
There are 7 people at a party. If every person brings one gift for each of the
ASHA 777 [7]

Answer:

42 gifts

Step-by-step explanation:

No. people in party = 7

No. of gift each person will receive = 6

Total no. of gifts = 7 * 6 = 42

6 0
4 years ago
Other questions:
  • The ratio of dogs and cats is 6:7. if the total number of animals is 52, how many cats and how many dogs
    10·1 answer
  • Four times a number<br> decreased by ten is 34.<br> Write an equation &amp; solve.
    13·1 answer
  • 5.2 + 3 + (-1.5) + (-3.3)+ (-3.8) + (-9.2)<br><br> A. 96.1<br> B. -96.1<br> C. -9.6<br> D. 9.6
    10·1 answer
  • Elsa wants to date 6 reindeer. How many and marry Sven. How may reinderr is there in total?
    15·1 answer
  • Please help with algebra question.
    8·1 answer
  • What is the equation for a line with a slope of 2/3 that goes through (1, -3)?
    9·1 answer
  • What are the x- and y-intercepts of the graph of -7x + 4y = -14
    15·1 answer
  • (3x-2) (x²+x+6) HELP
    5·2 answers
  • 00 pts
    6·1 answer
  • Which number needs to be added to the table to keep it proportional?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!