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
Karolina [17]
2 years ago
14

Solve the simultaneous equations

Mathematics
2 answers:
almond37 [142]2 years ago
8 0

Answer:

x = -1, y = 2

Step-by-step explanation:

2y - 5x = 9

4y + 3x = 5

eliminate one of the variables by multiplying the equations and then adding them together.

3(2y - 5x = 9)

5(4y + 3x = 5)

6y - 15x = 27

20y + 15x = 25

26y = 52

y = 2

now input the value of y into one of the original equations to find x.

8 + 3x = 5

8-5 = 3

x = -1

NeTakaya2 years ago
4 0

Answer:

y = 2, x = -1

Step-by-step explanation:

2y - 5x = 9

2y = 9+5x

y = (9+5x) /2

4y + 3x = 5

4((9+5x) /2) + 3x = 5

13x + 18 = 5

13x = -13

x = -1

y = (9+5x) /2

y = (9+5(-1)) /2

y = 2

You might be interested in
I want to install carpet in my living room, which is 200 inches long and 50 ft wide. The carpet is sold for 5000 naira per yard2
inn [45]

Answer:

462962.96 naira

Step-by-step explanation:

This problem is complicated by the use of two different units.  I chose to use inches for the dimensions of the carpet.

200 in long

50 ft wide = 50 x 12 = 600 in.

Area = 200 x 600 = 120000 in^2

A square yard is a square 36 in. x 36 in. = 1296 in^2

Divide 120000 by 1296 to find out how many square yards of carpet you'll need.

120000 / 1296 = 92.59

Multiply by 5000 naira/yd^2 = 462962.96

7 0
2 years ago
How would I answer this
Mekhanik [1.2K]

Answer:

can u turn ur picture around it is upside down?

Step-by-step explanation:

after that i can help!

8 0
3 years ago
Read 2 more answers
I need help with this please and fast
erik [133]

Step-by-step explanation:

what are you trying to find???

3 0
3 years ago
Answers Jesse and Amir, write the system of equations using your answers from 1 and 2
babymother [125]

Answer:

? what are the answers from 1 and 2?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Will mark you as BRAINLIEST​
BabaBlast [244]

Answer:

11^-2 = 0.0082644628

11^-1 = 0.0909090909

11^0 = 1

11^1 = 11

11^2 = 121

3 0
2 years ago
Other questions:
  • There are 40 students in a class. Girl:
    5·1 answer
  • Please help it is 6th grade math easy for you guys
    11·1 answer
  • Will make brainliest if answered correctly
    12·2 answers
  • I need help ASPA with these two questions!!! <3 GIVE THANKS
    12·2 answers
  • Please simplify this fraction
    15·1 answer
  • Find the cube root of 343a³b⁶
    7·1 answer
  • Same points yall<br> 5+4x x=8
    13·1 answer
  • FOR 58 POINTS!!!
    14·2 answers
  • Find the length of JH help pls
    15·2 answers
  • Please help with this qn :)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!