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
Reptile [31]
4 years ago
5

Pair of linear equation in 2 variables graphical method 2x-y+1=0 x-2y+8=0 Pls help

Mathematics
1 answer:
son4ous [18]4 years ago
3 0

Step-by-step explanation:

2x-y= -1

x-2y= -8

eqn2*2=2x-4y= -16

eqn3- eqn1

-3y=- -15 y=5

2x-5= -1

2x=4 x=2

You might be interested in
It is estimated that there are approximately 1 × 1014 cells in the human body. Which of the following represents this amount in
serg [7]
1014 hope thts the awnser it seemed to obvious
4 0
3 years ago
I don't understand how 251/4 divided by (-3/8)= -502/3
rodikova [14]
I must assume you meant 251 / 4 (not 25 1/4).

251
-----
  4
====
   -3
-------
     8

can be evaluated by inverting the second fraction and multiplying the result:

251       -8
-----  * -----
   8        3

The 8s cancel, leaving us with -251/3.  Note that -248/3 = -83, so that the magnitue of -251/3 must be a little larger than -83.  

251 divided by 3 is 83 with a remainder of 2:  251/3 = 83 2/3

So -251/3 = -83 2/3 (answer)
7 0
3 years ago
Given f(x) = -3x + 5, findIf (-6).
azamat
The answer is 23 that’s the answer
3 0
4 years ago
Read 2 more answers
I NEED HELP PLEASE !!!
Igoryamba

Answer:

64

180 - 65 - 51 = 64

6 0
3 years ago
I need to find the length
Deffense [45]

Answer: I am pretty sure it is 7

Step-by-step explanation:

the smaller one is to smaller than the bigger one so you would just add two to the 5

6 0
4 years ago
Read 2 more answers
Other questions:
  • What is the slope of the long represented by the equation y=4/5x-3
    15·2 answers
  • Mary wants to buy a small fence to place around a semicircular rock garden the diameter of the semicircle 18
    6·1 answer
  • The sum of two consecutive integers is -225. Find the two integers.
    7·2 answers
  • How many different arrangements of the letters in the word SCHOOL are there? .
    10·1 answer
  • Quem é a professora de matematica do 6 ano de Veranópolis?
    10·1 answer
  • I need help on this asap
    12·1 answer
  • Solve each proportion x/6 = 3/8
    10·2 answers
  • A boat traveled 54 km with the stream and 42 km against the stream spending a total of as much time as it would spend while trav
    5·1 answer
  • What is the surface area of the sphere below?
    10·2 answers
  • What is the solutuon to the eqation 1/2x+3=2/3x+1
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!