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
arsen [322]
3 years ago
14

Solve: 37x + 41y = 7041x + 37y = 86​

Mathematics
1 answer:
AysviL [449]3 years ago
4 0

Step-by-step explanation:

37x + 41y = 70 --- R¹

41x + 37y = 86 --- R²

R¹ + R² : 78x + 78y = 156

78(x + y) = 156

x + y = 2 --- R³

R¹ - R² : -4x + 4y = -16

4(y - x) = -16

y - x = -4 --- R⁴

R³ + R⁴ : 2y = -2

y = -1

R³ - R⁴ : -2x = -6

x = 3

You might be interested in
How many solutions are there to the equation below?<br> 8x + 47 = 8(x + 5)
qaws [65]

Answer:

there are 0 solutions to the equation

Step-by-step explanation:

To know how many solutions are in the problem, we have to solve for x and see what result we have left. According to the result, we will know how many solutions there are

8x + 47 = 8(x + 5)

8x + 47 = 8*x + 8*5

8x + 47 = 8x + 40

8x - 8x = 40 - 47

0 = -7

As we can see we are left with an equality that is not fulfilled, this means that there is no solution to the problem, at least in the field of real numbers

4 0
3 years ago
Please Help!!!!! I have a math test and I am not good at this stuff. and here is a hint: don't use the 10.
Talja [164]
A. 12•8=96, 96/2=48, 48•4=192, 12•12=144, 192+144=336
5 0
3 years ago
Xin Used 20 yards of fencing to build the walls of a square a chicken coop. Used 20 yards of fencing to build the walls of a squ
Gnoma [55]

Answer:

Equation: 20=4x or x=\frac{20}{4}

Solution: x=5

Step-by-step explanation:

The formula that is used to calculate the perimeter of  a square is:

P=4s

Where "s" is the side lenght the square.

Knowing that Xin used  20 yards of fencing to build the walls of a square chicken coop (in which the lenght in yards of each wall is represented with "x"), you can identify that:

P=20\\\\s=x

Then, you can susbtitute values into the formula P=4s:

20=4x

Finally, you must solve for "x" in order to find its value.

This is:

\frac{20}{4}=x\\\\x=5

6 0
3 years ago
PLEASE HELP WILL GIVE POINTS PLEEEEASE!!!!!!!!!!!!!!
mixer [17]

Answer:

b=-2

Step-by-step explanation:

3√-8 = -2

-2^3 = -8

8 0
3 years ago
the animal shelter has space for 800 animals there were already 468 animals at the shelter after a storm a hundred ninety two mo
Anna007 [38]

Answer:

It is reasonable.

Step-by-step explanation:

If you add 468 (amount of animals already there) and add how ever many more coming (192) then you'll get 680. If you add 100 more that will only be 780 animals.

6 0
3 years ago
Other questions:
  • The solution x=1/5 is a solution to which of the following equations?
    5·1 answer
  • look at this equation and the steps used to solve it. Which answer is the best justification for step 1 of this solution
    8·1 answer
  • What is the missing number?
    9·1 answer
  • 10. Write the number 2,049 in<br> expanded form.
    15·2 answers
  • What is 1976 divided by 8?
    13·2 answers
  • HELP ASAP , algebra 1 giving BRAINLIEST , no guessing , please include the letter d in your math sentence as the variable.
    12·1 answer
  • How long will it take for $3000 to grow to $7000 if it is deposited in an account earning 7% interest?
    14·1 answer
  • Express the confidence interval 0.555 less than 0.777 in the form Modifying above p with caret plus or minus Upper E.
    7·1 answer
  • Anyone please answer !!!!! Happy holidays!
    5·2 answers
  • HURRRYYYY! I ONLY HAVE 3 MINUTES.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!