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kow [346]
2 years ago
7

Will make brainliest, please help​

Mathematics
1 answer:
andrew11 [14]2 years ago
8 0
-5x+4y=2
9x-4y=6

eliminate the 4y as a positive 4 + negative 4 =0
this will leave you with
-5x=2
9x=6
add them
4x=8
divide both sides by 4

x=2


to find y, plug in x=2 for any one of the original equations

-5(2)+4y=2
-10+4y=2

add 10 to both sides

4y=12

divide both sides by 4

y=3

the final answer is (2,3)
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Find the mean, median, mode, and range of this data: 49, 49, 54, 55, 52, 49, 55. If necessary, round to the nearest tenth.
Zigmanuir [339]
The mean is the average.
So, to find the mean you want o add up all of the numbers and then divide by the number of numbers.

49 + 49 + 54 + 55 + 52 + 49 + 575 = 363
363 / 7 = 51.85
Rounded to 52

For the median you want o line all of your number up from least to greatest and then find the middle number.

49,49,49,52,54,55,55

Your median is 52

The mode is the number that is listed most often

49 is listed 3 times
54 is listed 1 time
52 is listed 1 time
55 is listed 2 times

So, your mode is 49




4 0
3 years ago
Someone please help...​
Viefleur [7K]

Answer:

2 1/3

1 4/3

2.333...

233.3...%

Step-by-step explanation:

3 0
2 years ago
What is the constant of proportionality, and what method did you use to determine this?
atroni [7]

Answer:

it should be A

Step-by-step explanation:

hope this helps :)

8 0
2 years ago
May someone help me 5x+8=7x
Korvikt [17]
5x-7x=-8
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this is how to solve it
4 0
2 years ago
Read 2 more answers
Pls help as quick as possible 8th grade math!!!!!
Maksim231197 [3]

Answer:

1) y= 3x + 7

2) y= 3/4x + 10

3) y= -5x - 2

4) y= 12x - 6

5) y= 1/2 + 9

Step-by-step explanation:

6 0
2 years ago
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