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
bonufazy [111]
3 years ago
14

2m+n=7 4m+3n=-10 Solve using substitution method

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

m=31/2, n=-24. (31/2, -24).

Step-by-step explanation:

2m+n=7

4m+3n=-10

-------------------

n=7-2m

4m+3(7-2m)=-10

4m+21-6m=-10

-2m=-10-21

-2m=-31

2m=31

m=31/2

2(31/2)+n=7

31+n=7

n=7-31

n=-24

You might be interested in
If 2cm rep 24 what length will be rep by 3cm​
sergejj [24]

Answer:

Step-by-step explanation:

So 1cm rep = 24 ÷ 2 = 12

So 3cm rep = 12 x 3 = 36

3 0
3 years ago
Read 2 more answers
A pony, tied to the end of a lead, can walk in a full circle, a distance of 56.55 meters. About how long is its lead?
sergejj [24]
B is the correct answer
4 0
3 years ago
Read 2 more answers
HELPPPPPPP. Marie has two boxes of colored markers. Each box contains 3 markers. In
REY [17]

Answer: 16.6% percent chance she will pull out a blue or orange marker.

Hope this helps! :)

4 0
3 years ago
Arrange and write the integers in decreasing order -47, -82, 77, -48
Travka [436]
Decreasing order : 77 ,-47 ,-48 ,-82
6 0
3 years ago
Father is four times as old as Mary. Five years ago he was seven times as old. How old is the father now?
melamori03 [73]

Answer:

If Father is four times older than Mary, that would be 4 times 10-- which equals 40. Five years ago, Mary must have been 5 years old. So, multiply 7 and 5 and you'll get 35! Father would have been 35 years old.

I hope this helps!

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • In △ABC, m∠A=57°, m∠B=37°, and a=11. Find c to the nearest tenth.
    12·1 answer
  • How much would $300 invested at 4% interest compounded monthly be
    15·1 answer
  • Really easy i just don't feel like doing it, 10 extra points, (find x)
    9·1 answer
  • Dantes cell phone company charges $45 per month for unlimited calls and internet use and $0.25 per text message his last fell ph
    11·1 answer
  • H&M purchase t-shirts from its suppler for $5.They sell the t-shirts in their store for $11.By what percentage do they marku
    5·1 answer
  • ANSWER THIS FOR BRAIN!!<3
    5·2 answers
  • An express train travel from A to B for 4 hours. A normal train travel from B to A for 10 hours. Both of them started at the sam
    9·1 answer
  • Which quadrant in a coordinate plane has two positive points
    6·1 answer
  • Please fix the question and help me do it the right way
    14·1 answer
  • What is the remainder when f(x) = 3x3 + 27x2 + 18x − 168 is divided by (x − 4)?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!