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
kozerog [31]
3 years ago
7

9x-2y=11 5x-2y=15 what is the solution to the above system of equations ASAP

Mathematics
2 answers:
natali 33 [55]3 years ago
8 0

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

Mice21 [21]3 years ago
7 0
Multiply the second row by -1

9x-2y=11
-5x+2y=-15

4x=-4
X=-1

9(-1)-2y=11

-9-2y=1
Add 9 to both sides
-2y=10
Y=-5

(-1,-5)
You might be interested in
Solve each system of equations by writing a new system that eliminates one of the variables.
Rufina [12.5K]

Answer:

x=33\\y=-41

Step-by-step explanation:

Let:

2x+y=25\hspace{5}(1)\\and\\4x+3y=9\hspace{5}(2)

We need to eliminate one of the variables, so let's use elimination method. First multiply (1) by 2

2*(1)\equiv\hspace{5}4x+2y=50

Now subtract (2) from 2*(1) in order to eliminate x:

2*(1)-(2)\\4x-4x+2y-3y=50-9\\-y=41

Solving for y:

Multiplying both sides by -1  

y=-41

Finally, replacing the value of y in (1)

2x-41=25

Solving for x:

add 41 to both sides:

2x=66

Multiply both sides by 1/2:

x=\frac{66}{2} =33

3 0
3 years ago
Compare. Use >, <, or = to complete the statement. | –10 | | 11 | A. > B. = C. <
mash [69]
Answer: |-10| < |11|

So choice C. is right.

hope this helps!
6 0
3 years ago
Read 2 more answers
Priority question
Ymorist [56]
Sixth grade:
7 | x x x x x x
8 | x x x x
9 |x x x x x x
A | x x x x . . . . . . . . where "A" is used to represent 10 tens (100)

7th grade:
5 | x x x x x
6 | x x x x x x x
7 | x x x x
8 | x x x x

The range (low, high) and median of the 6th grade scores are all higher than those of the 7th grade scores.

Based on visual inspection, Grade 6 appears to have the higher mean score.
6 0
3 years ago
Read 2 more answers
5a + ax - 2b + by Bb
ss7ja [257]
I am not sure but just do the mAth with the numbers so do 5-2 then add the letters it is 3 but im not sure how to put the letters in the order, good luck. :)
6 0
3 years ago
A student is solving the problem X to the power of 2+10x+ __=16+ __ my method of completing the square. What number should the s
Finger [1]

Answer: C) 25

Step-by-step explanation:

x²+10x+ __=16+ __

Only the square of 5, 5², which is 25, can make the two factors plus equal to 10x, so we need to add 25.

3 0
3 years ago
Other questions:
  • Point J (-2,1) and point K (4,5) form line segment JK. For the point P that partitions JK in the ration 3:7, what is the y- coor
    14·2 answers
  • The sum of a number, 1/6 of that number, 2/1/2 of that number, and 7 is 12/1/2. Find that number
    11·1 answer
  • Please please please I'm begging you help me find the y intercept for these I will give brainliest
    5·1 answer
  • 10. Answer True or False for the following statements. If false, justify what would make the statement true. a. If the least-squ
    13·1 answer
  • Can someone help me here ASAP? this question is worth 20 points. will mark the brainliest, thank you so much in advanced.
    15·1 answer
  • How can u get from 2 to 21
    9·2 answers
  • What is the expression for the below sequence (use n)<br><br> -3,-6,-9,-12
    12·1 answer
  • Please help me pleaseeeeeee
    11·1 answer
  • :p help............::
    6·2 answers
  • A pair of dice was rolled many times
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!