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
timama [110]
3 years ago
15

X - y = -22x + 4y = 38​

Mathematics
1 answer:
Oxana [17]3 years ago
7 0

Answer:

y=7

x=5

Step-by-step explanation:

x-y=-2

 +y   +y

x=-2+y

then substitute -2+y into the x in the other equation

so:

2(-2+y) + 4y = 38

-4+ 2y +4y = 38

-4+6y= 38

+4         +4

6y=42

divide both sides by 6

y=7

to get X:

x-y=-2

x-(7)=-2

 +7   +7

x=5

You might be interested in
Graph y=x^2+1 is it a function
frez [133]
Hello,

The graph of y = x² + 1 most certainly is a function. 
It is a function because for every value of x, there is only one value of y. 

The domain of y = x² + 1 is the set of all real numbers and the range is y ≥ 1. 
7 0
4 years ago
A certain bookcase has 2 shelves of books. On the upper shelf, the book with the greatest number of pages has 400 pages. On The
Drupady [299]

Answer:

It is 437.5

Step-by-step explanation:

The median refers to the value in the middle of a set of number or observation. If the set is uneven, the value is one of the numbers, if the number of observation is even, then is the average between the two numbers in the middle.

In this set, we know that on upper shelf the maximum number is 400 pages. So all the other books contain less pages than or equal amount of pages to the book with 400 pages.

On the lower shelf the books have at least 475 pages.

So we can express our sets in this way

Upper shelf (x ; 400)

Lower shelf (475 ; Y)

The median of the number of pages between this 2 shelves is the number between 400 and 475.

So it is 437.5

7 0
3 years ago
Exactly how many days is 72 hours?
jasenka [17]
72 hours is exactly 3 days...
5 0
4 years ago
Read 2 more answers
sean place 28 tomato plants olin a rows all rows contian the same number of plants .therebare between 5 and 12 plants in each ro
VikaD [51]
7 in each row and there are 4 rows
7 0
3 years ago
Would any of you happen to know this one?
Nikitich [7]
274.80 if you rounded to the nearest 10th but if you don’t it will be 274.78
3 0
3 years ago
Other questions:
  • Please help, explain your answer
    11·1 answer
  • On the next trip the Hans leave 10 cans of dog food for 4 days.how much food will the dogs get each day is trish feeds them an e
    8·1 answer
  • Mr Wilson has $3000 in his bank account. Ms Nelson has 10 times as much money in her bank account as Mr Wilson has in his bank a
    5·2 answers
  • Please what is the answer?
    15·1 answer
  • Please help me, extra points !!
    7·1 answer
  • What is the rate of change in the table?
    9·1 answer
  • What is the equation of the line whose slope is 20 and a y-intercept of 5
    5·1 answer
  • In maths what is 17x - 12x​
    10·2 answers
  • The rides at an amusement park have restrictions based on height. For the Swan Ride, the minimum height is 2 feet and the maximu
    8·1 answer
  • Find the function values
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!