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
Nikitich [7]
3 years ago
14

Use substitution to solve each of the following pairs of simultaneous equations for x and y in terms of m and n.

Mathematics
1 answer:
mixer [17]3 years ago
8 0

Answer:

Step-by-step explanation:

a)

As given y=mx lets replace mx with y in the first equation

2y=n => y=n/2, replace y with n/2 => mx=n/2, thus x=n/2m

b)

As given y=nx lets replace y with nx in the first equation

x+n^2x=m => x(n^2+1)=m = > x=m/(n^2+1), thus y= n*m/(n^2+1)

c) Replace y with nx => mx-nx=n => x(m-n)=n = > x=n/(m-n), thus y=n^2/(m-n)

You might be interested in
Use or = to compare the following decimals.
Lynna [10]
The correct answer is B 9.74_98.1
5 0
2 years ago
Factorise x² - x with explanation please?​
Assoli18 [71]

Answer:

x(x + 1)

Step-by-step explanation: This is an important way of solving quadratic equations. The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1)

3 0
2 years ago
What is the solution of the equation x^2 = 64?
timurjin [86]

Answer:

the answer is the First option.

7 0
2 years ago
A plant used to be 11 inches has grown to 17 inches tall.what is the percent increase of the height of the plant
tia_tia [17]

Answer:

54.5%

Step-by-step explanation:

7 0
3 years ago
ASAP PLEASE HELp!!! I WILL GIVE BRAINLEST!!!
Alenkinab [10]

Answer:

Its 100

Step-by-step explanation:

I think <3 trust me on this shawty but not if its wrong

3 0
3 years ago
Other questions:
  • Jerome added two numbers the sum was 83 one of the numbers was 45 what was the other number
    15·2 answers
  • Clara uses the function f(x) = 20x + 10 to determine the weekly profit she makes, in dollars, for babysitting, where x is the nu
    15·1 answer
  • 4 + 5<br><br> Please help this is so hard and I don’t understand
    15·2 answers
  • Arrange the absolute value expressions in increasing order of their values. |-90| |-43| |47| |-55| |-88| |38| |-18|
    5·1 answer
  • Writing equation for revenue, c=15x+2000
    6·1 answer
  • In triangle XYZ. the measurements of angle X and angle Y are 45° Which is the longest side of the triangle
    15·1 answer
  • Help appreciated:) <br><br> I will give brainliest
    8·2 answers
  • Hey! i’ll give brainliest please help
    7·1 answer
  • A bus makes a stop at 2:30, letting off 12 people and letting on 3. The bus makes another stop ten minutes later to let off 2 mo
    12·1 answer
  • On a homework assignment or in the study plan, you would click the Check Answer button to check
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!