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
nirvana33 [79]
3 years ago
12

2x+y=1 9x + 3y = -3 The x-coordinate of the point of intersection is

Mathematics
2 answers:
bija089 [108]3 years ago
5 0

Answer:

Step-by-step explanation:

Hello there!

If we have two equations, two lines and they intersect the key here is to find the value for x, then for y. By doing this we'll find the cartesian point for their common point. The point of intersection.

So Let us set the System of Linear equations. Solving it using the Addition Method.

\left \{{{2x+y=1}\atop {9x+3y=-3}}\right. \\ \left \{{{2x+y=1}*(-3)\atop {9x+3y=-3}}\right. \\\left \{{{-6x-3y=-3}\atop {9x+3y=-3}}\right. \\\\ 3x :3=-6 :3\\ x=-2\\ \\2(-2)+y=1\\ y=5\\

So the point of intersection is (-2,5) and x-coordinate is x=-2

Anvisha [2.4K]3 years ago
4 0
Hello : 
<span>2x+y=1 ....(1)
9x + 3y = -3....(2)
by (1) : y = -2x+1...(*)
by (2) : 3(3x+y) = - 3
3x+y = -1
y = -3x -1 ....(**)
by (*) (**) :
-2x+1 = -3x -1
- 2x +3x = -1 -1 
x =-2  is </span><span>The x-coordinate of the point of intersection</span>
You might be interested in
What is the integer of the square root of 70?
Zepler [3.9K]
8*8  = 64
9*9 = 81

so integer part of sqrt 70  is 8 Answer
5 0
3 years ago
Which Graph shows K(4,-4)
Hatshy [7]

Answer:

option 2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write an equation for the line perpendicular to 4x - 12y = 2 and passing through point (10, -1)
MrMuchimi

Answer:

3x+y=-31

Step-by-step explanation:

4x - 12y = 2\\12y = 4x-2\\y=\frac{x}{3}-\frac{1}{6}

Slope of perpendicular line is -3.

y=-3x+b

Sub in the point (10, -1)

-1=-3(10)+b\\-1=30+b\\b=-31\\y=-3x-31\\3x+y=-31

8 0
3 years ago
С
serious [3.7K]

Answer:

10.6 oz

Step-by-step explanation:

X × 0.25 = 0.265

x= 2.65/0.25= 10.6 oz

8 0
2 years ago
A case of Mountain Dew (24 cans) cost $7.68. What is the unit price?
Westkost [7]
0.32 cents for each unit because if you divide 7.68 by 24 it is 0.32
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is this prism called? if you want to explain it to me also thatd be great (volume and surface area) but I just need to know
    8·1 answer
  • The slope of the line below is -2. Use the coordinates of the labeled point to find the point-slope equation of the line. (4, -2
    13·1 answer
  • You have $59.95 in your wallet and want to buy some new CDs. If the CDs are $11.99 each, what number of CDs, x, can you buy? Wri
    12·1 answer
  • Find the volume of the rectangular prism
    14·2 answers
  • I need some help please I would greatly appreciate it
    12·1 answer
  • I need help with number 7
    5·1 answer
  • The furniture store sells each chair (c) for $225. To have them shipped to their house, the store charges $60. If the Browns bou
    11·1 answer
  • At a basketball game, 55% of people attending were supporting the home team, while
    8·1 answer
  • What is the quotient of 1414 divided by 32 and written in a mixed fraction
    6·1 answer
  • Please help me! I will give brainly
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!