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
Maslowich
1 year ago
15

Solve using substitution method and show all work 4x -2y = 18-4x + 2y = -18

Mathematics
1 answer:
Travka [436]1 year ago
6 0

Solving the simultaneous equation show that the solution is inconsistent.

<h3>What is Inconsistent solution?</h3>

A simultaneous equation is said to have inconsistent solution when there is no value as the solution. This implies that no value of unknown will satisfy the equation.

Hence no value of x and y satisfies the equation.

4x -2y = 18 ______1

-4x + 2y = -18 ____2

from (1) make y the subject of formular

4x -2y = 18

2y =  4x - 18

y = 2x - 9   ______3

substitute y = 2x - 9 into 2

-4x + 2y = -18

-4x + 2 (2x - 9 ) = -18

-4x + 4x - 18 = -18

-4x + 4x = -18 + 18

0 = 0

This gives no solution hence the simultaneous equation is said to be inconsistent

Read more on inconsistent solutions here: brainly.com/question/15654281

#SPJ1

You might be interested in
Find the geometric sum: 40 + 20 + 10 + … + 0.078125
sveticcg [70]
S=40+20+10+\cdots+0.078125
S=40\left(1+\dfrac12+\dfrac14+\cdots+\dfrac1{512}\right)
S=40\left(1+2^{-1}+2^{-2}+\cdots+2^{-9}\right)

2^{-1}S=40\left(2^{-1}+2^{-2}+2^{-3}+\cdots+2^{-10}\right)

\implies S-2^{-1}S=40\left(1-2^{-10}\right)
\implies\dfrac12S=40\left(1-\dfrac1{1024}\right)
\implies S=80\left(1-\dfrac1{1024}\right)=\dfrac{5115}{64}=79.921875
4 0
3 years ago
Help me asap please!!!
Artemon [7]
Well, just by looking at the beginning of the problem, Jamelia had made the common mistake of thinking that 
\sqrt{72} (<span>8.4852...)
</span>is equal to 
2* \sqrt{36} (12)

If you want to estimate a square root like 72, simply find squares that would fit around the number you are looking to find, in our case, 72.

So 9*9 is 81, which is too high and 8*8 is 64, which is too low. So you know that somewhere between those numbers is what your root of 72 is!
5 0
3 years ago
How do you do equivalent fractions ?
USPshnik [31]
They are equal fractions that go into each other. for example, 
2/4 goes into 4/8
7 0
3 years ago
James and his family spend a morning picking peaches. They fill several bags. This line plot shows the weight of each bag.
Alja [10]

Answer:

Step-by-step explanation:

um i no but i can not tell u

8 0
2 years ago
Help me with this questions please. I will give you 15 points.
alexgriva [62]

4) the answer is d

5) the answer is a

6) the answer is b

5 0
3 years ago
Other questions:
  • While in europe, if you drive 107 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per lite
    12·2 answers
  • Tickets to the concert were 2.50 for adults and 1.00 for students. 1,200 was collected and 750 tickets were sold.
    9·1 answer
  • The question is a screenshot
    9·2 answers
  • If paul puts 300 dollars in a saving account that earns 3% interest how much interest will he earn after 2 years?​
    5·2 answers
  • I need to know How to solve it
    7·1 answer
  • guys i need huge help. this isn’t a “brainly” question but i do my work online, and i have over 150 OVERDUE assignments. i’ve be
    15·2 answers
  • Which is it which is a better buy 10 lemons for $1.39 or 6 lemons for $0.79
    13·1 answer
  • A soup can has a 3 and one eighth in diameter and is 5 in tall. What is the area of the paper that will be used to make the labe
    7·1 answer
  • Complete the table and graph the coordinates pls sumone just tell me what to put in the table bc i ik how to do the graph brainl
    12·2 answers
  • What would be the reminder of 20,000 divided by 24 ?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!