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
NNADVOKAT [17]
3 years ago
10

2y +9 =x 9x- 8y=31 System of substitution

Mathematics
2 answers:
Ilya [14]3 years ago
6 0

Answer:

I have solve it in above picture

VLD [36.1K]3 years ago
3 0

Answer:

x = -1

y = -5

Step-by-step explanation:

9(2y+9) - 8y = 31

18y + 81 - 8y = 31

10y + 81 = 31

10y = -50

y = -5

2(-5) + 9 = x

-10 + 9 = x

-1 = x

You might be interested in
Using the digits 0 to 9 at most one time each,fill in the boxes below to write equations whose solution is -1/2
Lena [83]

Answer:

The equations whose solutions are -1/2 are:

1. 4x + 1 = 6x + 2

2. 3x + 7 = 5x + 8

Step-by-step explanation:

Using the digits 0 to 9 at most one time each, the equations whose solutions are -1/2 are:

1. 4x + 1 = 6x + 2

-2x = 1

x = -1/2

2. 3x + 7 = 5x + 8

-2x = 1

x = -1/2

3 0
3 years ago
Try to find this answer! Thank you!
r-ruslan [8.4K]
418,200 - 326,700 = 91,500
7 0
3 years ago
The table shows the height of several buildings in Chicago. Use the table to determine whether the height of the building is a l
guajiro [1.7K]

Answer:

no (mark brainlest plz)

Step-by-step explanation:

because North tower dips down when its the highest. Its also not linear because it +5 then +30 all the sudden

8 0
3 years ago
Help me find the scale factor please!!
Oliga [24]

Answer:1.5 i think

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If m∠NOP = 24 and m∠NOQ = 110, what is m∠POQ? Angle N O Q divided into two unequal angles by ray O P. A. 62 B. 86 C. 134 D. 156
Dmitrij [34]

Answer:

<em>B. 86 degrees</em>

Step-by-step explanation:

Given the following angles:

m∠NOQ = 110

m∠NOP = 24

Using the addition postulate:

m∠NOQ =  m∠NOP + m∠POQ

110 = 24 + m∠POQ

m∠POQ = 110 - 24

m∠POQ = 86

<em>Hence the measure of m∠POQ is 86 degrees</em>

5 0
3 years ago
Other questions:
  • 7.3579 E8 in standard form
    7·2 answers
  • Hunter is splitting a quart of ice cream with 7 members of his family. if the quart is split evenly how many cups will each fami
    10·2 answers
  • X plus the letter y equals the number 8
    9·2 answers
  • Which statement is true about every rectangular pyramid?
    7·2 answers
  • I need an urgent help​
    11·1 answer
  • PLEASE ANSWER ASAP<br> If the measure of UV is 84°, what is the measure of YUV? (SEE PICTURE)
    13·2 answers
  • Ill give brainliest help asap
    15·2 answers
  • Need help please. Need the answer now
    15·2 answers
  • Please HELP correct answers only pls
    15·2 answers
  • Which two are congruent?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!