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
ludmilkaskok [199]
2 years ago
15

Which statement correctly explains how Andre could find the solution to the following system of linear equations using eliminati

on?
8s-9t=15
7s-2t=12

Multiply the first equation by –7 and the second equation by 8, and then subtract.
Multiply the first equation by -7 and the second equation by 8, and then add.
Multiply the first equation by 2 and the second equation by 9, and then add.
Multiply the first equation by –2 and the second equation by 9, and then subtract.
Mathematics
1 answer:
e-lub [12.9K]2 years ago
6 0

Multiply the first equation by -7 and the second equation by 8, and then add. Then the correct option is B.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

The system of the linear equations are given below.

8s – 9t = 15 …1

7s – 2t = 12 …2

Multiply the first equation by -7 and the second equation by 8, and then add.

–56s + 63t = -105

<u>   56s – 16t = 96  </u>

             47t = -9

Then the correct option is B.

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

You might be interested in
Is there enough information to prove P is parallel to Q if so state the theorem or postulate?
stira [4]
Yes there is. i do not know the theorem but I know it's rule. If 2 lines intersect the same line, and they have an equal angle in the same quadrant then they are parallel. This is because their all of their angles would be equal and they are basically the same line but shifted over
3 0
3 years ago
Read 2 more answers
Can someone actually answer this question pls its my 3rd time posting it and ill ive gotten was wrong or answers that make no se
andre [41]

Answer:

(-2+-5) equals -7.

Because the signs are the same, we dont change it.

(3+5) equals 8. Same like the other equation, the signs are the same so we do not change it.

Now we do (-7+8) The answer will be 1. Lets use a little graph since its hard to explain.

-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

Mark -7 anyway you want. (Circle it, draw a line under it, what ever you want.)

Now Move the line 8 times.

When you do that your line will stop at 1.

And thats how you do it.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Jeremy uses 27 inches of board for each birdhouse he builds.
jenyasd209 [6]
4.5; 27 * 6 = 162 and then do 162/36 which is 4.5
8 0
2 years ago
Read 2 more answers
HCPS Algebra
ira [324]

Answer:

Step-by-step explanation:

7 0
3 years ago
In your job at a restaurant, you made a 12-cup pot of coffee at 7:20 a.m. By 7:40 a.m., you had served it all and had to make an
Anarel [89]

Answer:

36 cups

Step-by-step explanation:

every 20 minutes you make 12 cups. 20×3=60, which is 1 hour. You will meed to make 3 pots of coffee that are 12 cups each, 3×12=36

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x.
    14·1 answer
  • I have two bags of counters.
    9·2 answers
  • Help from 13-15 show work please
    9·1 answer
  • Please I need help. I need this ASAP, the screenshot is right below here.
    8·1 answer
  • Can someone please help me
    6·1 answer
  • Which slope and y-intercept correspond with the graph?
    9·2 answers
  • How do you reduce 75/100?
    8·2 answers
  • I need help ASAP please
    9·2 answers
  • Helpppppppeeeeeeppepepeeeeee
    9·1 answer
  • You borrowed 15,000 for 3 years at 10% rate of interest. How much will the maturity value be in 3 years
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!