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
AleksandrR [38]
3 years ago
10

use the elimination method to solve the system of equations.choose the correct ordered pair. -3y=x-5 x+5y=7. ​

Mathematics
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

<h2>B. (2, 1)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}-3y=x-5&\text{subtract x from both sides}\\x+5y=7\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-x-3y=-5\\x+5y=7\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad2y=2\qquad\text{divide both sides by 2}\\.\qquad\qquad y=1\\\\\text{Put the value of y to the second equation:}\\x+5(1)=7\\x+5=7\qquad\text{subtract 5 from both sides}\\x=2

You might be interested in
Sanjay needs 90 meters of fence to go around a rectangular garden.
VladimirAG [237]
W + 3w = 90 is obviously wrong
8 0
3 years ago
Read 2 more answers
Find a number that is 6 less than ,3 divided by 5
djverab [1.8K]

Answer:

-3.06

Step-by-step explanation:

3-6=-3

-3/5=-0.6

6 0
3 years ago
Read 2 more answers
Use a paragraph, flow chart, or two-column proof to prove the angle congruency. Given: ∠ CXY ≅ ∠ BXY
Llana [10]

Answer:

See explanation

Step-by-step explanation:

Consider triangles CAX and BAX. In these triangles,

  • \overline{AC}\cong \overline{AB} - given
  • \angle CAX\cong \angle BAX - given
  • \overline{AX}\cong \overline{AX} - reflexive property

By SAS postulate, \triangle CAX\cong \triangle BAX

Congruent triangles have conruent corresponding parts. So,

\overline{CX}\cong \overline{BX}

Consider triangles CXY and BXY. In these triangles,

  • \overline{CX}\cong \overline{BX} - proven
  • \angle CXY\cong \angle BXY - given
  • \overline{XY}\cong \overline{XY} - reflexive property

By SAS postulate, \triangle CXY\cong \triangle BXY

Congruent triangles have conruent corresponding parts. So,

\angle XCY\cong \angle XBY

5 0
3 years ago
Help with number 5 show work and explanation <br> ASAP PLEASE!!!!!!
ExtremeBDS [4]
Here !!!!!!!!!!!!!!!!!!!!

4 0
3 years ago
Find the LCM of the numbers using prime factorizations. 36,60
alexandr402 [8]
36=2*2*3*3=2²*3²
60=2*2*3*5=2²*3*5

LCM(36,60)=2*2*3*3*5=2²*3²*5=180
5 0
2 years ago
Other questions:
  • (३) एक शब्द में उत्तर लिखो:
    14·1 answer
  • What's the unit rate of 2.50 for 5 onces
    8·1 answer
  • Write an inequality for each situation <br> There are at least 24 pictures on the roll of film.
    14·2 answers
  • Avin and andrea are two of the children in the jones family gavin has as many brothers as sister andrea has twice as many as man
    9·1 answer
  • Help for 13-15 pls and explain for 15
    12·1 answer
  • What is the x intercept of 3x+2y=15
    5·2 answers
  • Please help! Brainliest Answer! Thank You!
    15·2 answers
  • 12 times 3/8 and simplified
    13·1 answer
  • X=2y-1 solve this equation<br> 3x+y=11
    15·1 answer
  • IMAGE BELOW I WILL MARK BRAINIEST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!