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
Savatey [412]
3 years ago
15

2x - 4y = 12 3x - 5y = 20

Mathematics
1 answer:
vitfil [10]3 years ago
7 0
You multiply the first equation by 3 and the second one by 2:
3*(2x - 4y = 12) = 6x - 12y = 36
2*(3x - 5y =20) = 6x - 10y = 40
Then use elimination:
6x - 12y = 36
- (6x - 10y = 40)
= -2y = -4
Solve:
y = 2
Then, plug 2 into the first equation and solve:
2x - 4(2) = 12
2x - 8 = 12
2x = 20
x = 10
There is the answer, x = 10 and y = 2.

You might be interested in
What is the value of x<br><br>a. 25<br>b. 12<br>c. 7 <br>d. 5​
tia_tia [17]
The answer is 5 because a^2 + b^2 = c^2
8 0
3 years ago
Read 2 more answers
Hi. I need some help on 15 and 16! Thank you!
Alenkinab [10]

Answer:

MN = 34, x = 7

Step-by-step explanation:

look at the file, cut off numbers are:

37

37

36

7 0
3 years ago
The product of 8 and b is less than or equal to 13
Ugo [173]

Answer:

1 or 0

Step-by-step explanation:

8 x b = 13

You can't divide 8 by two because that equals 16 so 8 x 1 is less than 8.

And 8 x 0 is 0

7 0
3 years ago
PLEase hurry please hURyy plaese hurry
steposvetlana [31]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

All these answers are correct. I triple - checked!

Step-by-step explanation:

In order from questions asked top - to - bottom:

First question:

  • 23 businesses

Second question:

  • 18 businesses

Third question:

  • 14 businesses

Fourth question:

  • 6 businesses

I hope this helps!

- sincerelynini

6 0
3 years ago
Emery Mining Inc. recently reported $147,500 of sales, $75,500 of operating costs other than depreciation, and $10,200 of deprec
Molodets [167]

Answer:

net income is $48452.81

Step-by-step explanation:

Sales =$147500

subtract operating expenses

-$75500 =$72000

subtract non- operating costs

depreciation -$10200 =$61800

-interest expense payable (16500*7,23%)$1196.25=63603.75

from profit before tax deduct income taxes =63603.75*25%=15150.9375

Net Income is therefore $63603.75-$15150.9375 = $48452.81

6 0
4 years ago
Other questions:
  • Find the directional derivative of f(x, y, z) = xy + yz + zx at p(1, −1, 7) in the direction from p to q(2, 4, 5). duf(1, −1, 7)
    5·1 answer
  • What is 9/10 as a decimal and percent
    13·2 answers
  • How to find the inverse of h(x) = 3/ -x - 2 List steps.
    6·1 answer
  • What is the equation of a line that is parallel to x=−5 and that passes through the point (1,4)
    13·1 answer
  • Mary and roberto bought identical backpacks at different stores. marys backpacks originally cost $65 and was discounted 25%. rob
    14·1 answer
  • Solve for the zeros of the quadratic function f(x) = 9x2 + 6x + 1. Write the answer as a fraction.
    15·2 answers
  • Angel y Claudia están considerando contratar a un empleado que les ayude con el trabajo en el sibercafe han entrevistado a dos p
    5·1 answer
  • How to solve the problems
    7·1 answer
  • Commute times in the U.S. are heavily skewed to the right. We select a
    5·1 answer
  • What set of reflections would carry trapezoid ABCD into itself? A (-1,-2) B (-2,-1) C (-4,-1) D (-3,-2)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!