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
brilliants [131]
3 years ago
15

What is the solution of the system? 7x+5y=19 and -7x-2y=-16 Need help ASAP

Mathematics
1 answer:
Stells [14]3 years ago
3 0

Answer:

x = 2, y = 1

Step-by-step explanation:

  • 7x + 5y = 19
  • -7x - 2y = -16

Use the elimination method to solve the system of equations. Add the terms from top to bottom. 7x and -7x cancel out.

0 + 3y = 3

Divide both sides by 3.

y = 1

Substitute 1 for y into the first equation.

7x + 5(1) = 19

7x + 5 = 19

Subtract 5 from both sides.

7x = 14

Divide both sides by 7.

x = 2

You might be interested in
A certain solution of salt water is 10% salt and weighs 50 pounds., More salt must be added to produce a solution that ls
SpyIntel [72]

what are do you want from me i don't even know my bad

5 0
2 years ago
What Is The Area Of The Rectangle: 145, 187. I AM COMPLETELY DESPRATE
Masteriza [31]

Answer:

27115

Step-by-step explanation:

145 x 187 = 27115

7 0
3 years ago
Determine the type(s) of the triangle with the given coordinates. X(6,1) Y(-2,-3) Z(0,3)
jeyben [28]

The triangle with the given coordinates X(6,1) Y(-2,-3) Z(0,3) is an isosceles triangle.

The given coordinates are X(6,1) Y(-2,-3) Z(0,3).

<h3>What are coordinates?</h3>

A coordinate system is a system in geometry that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold, such as Euclidean space, in a unique way.

We know that, Distance formula =\sqrt{(x_{2}-x_{1}  )^{2}+(y_{2}-y_{1}  )^{2}  }

Now, XY=\sqrt{(-2-6)^{2}+(-3-1)^{2}  }=\sqrt{80} units

YZ=\sqrt{(0+2)^{2}+(3+3)^{2}  }=\sqrt{40} units

XZ=\sqrt{(0-6)^{2}+(3-1)^{2}  }=\sqrt{40} units

Here, YZ=XZ

Hence, the triangle with the given coordinates X(6,1) Y(-2,-3) Z(0,3) is an isosceles triangle.

To know more about the coordinate geometry visit:

brainly.com/question/20393391

#SPJ1

3 0
1 year ago
Amy cut 32 feet of chain into pieces that were each
Hatshy [7]

Answer:

32ft of chain divided by 14ft pieces... that's two pieces of chain

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
She leaves a 20% tip of 1.80 what is the price of mira’s breakfast before the tip.
Scilla [17]

Answer:

$9

Step-by-step explanation:

The breakfast before tip costs x.

The tip is 20% of x.

The tip is $1.80.

20% × x = 1.80

0.2x = 1.8

x = 1.8/0.2

x = 9

Answer: $9

7 0
2 years ago
Other questions:
  • Barack walks 2 kilometers south and then x kilometers east. ​ ​He ends 5 kilometers away from his starting position. ​ ​ Find x
    13·1 answer
  • How do i find the perimeter of a polygon<br><img src="https://tex.z-dn.net/?f=8%20%2B%208%20%2B%2010" id="TexFormula1" title="8
    11·1 answer
  • Why is C the answer for this question?
    13·1 answer
  • Find the slope of the line please help​
    6·1 answer
  • (b) dy/dx = (x - y+ 1)^2
    7·1 answer
  • A line passes through the points (7, 10) and (7, 20). Which statement is true about the line?
    10·2 answers
  • Is X-13=x+1 true or false
    9·1 answer
  • I need help on this.
    12·1 answer
  • Find the slope of each line
    15·1 answer
  • Help please I need help please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!