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
AnnyKZ [126]
2 years ago
15

Solve the simultaneous equation 2x-5y=9 3x+4y=2

Mathematics
1 answer:
Dmitriy789 [7]2 years ago
5 0

Answer/Step-by-step explanation:

2x-5y=9

Add 5y  to both sides of the equation.

2x=9+5y

Divide each term by 2 and simplify.

Divide each term in 2x=9+5y by 2

\frac{2x}{2} =\frac{9}{2} +\frac{5y}{2}

Cancel the common factor of 2.

Divide x by 1.

x=\frac{9}{2} +\frac{5y}{2}

y=\frac{-9}{5} +\frac{2x}{5}

----------------------------------------------------------------------------------------------------------------

3x+4y=2

Add 4y to both sides of the equation

3x=2+4y

Divide each term by 3 and simplify.

Divide each term in 3x=2+4y by 3.

\frac{3x}{3} =\frac{2}{3} +\frac{4y}{3}

Cancel the common factor of 3.

Divide x by 1.

x=\frac{2}{3} +\frac{4y}{3}

y=\frac{-1}{2} +\frac{3x}{4}

You might be interested in
Evaluate -15a (-3) for a= 2 and b=-3<br> A.) 5/24 B.) -5/24 C.) -1080 D.) -40/3
zloy xaker [14]
Hhjhhhu did I need ooo 40
4 0
3 years ago
Is my answer right? if not break the hard news and give me the right one​
mafiozo [28]

Answer:

yeah

Step-by-step explanation:

it's right i think tell me if not if not I'm sorry

6 0
2 years ago
Will mark Brainlyist help me fill out the chart
Zigmanuir [339]

Answer:

The working is done in the image attached.

8 0
3 years ago
Which of the following best describes the solutions to the inequality shown below?
ollegr [7]
D. I think because you would get a negative
7 0
3 years ago
Events A and B are independent. find the missing probability<br> P(A)= 1/4 , P(B)= 3/5, P(B I A) =?
Svetach [21]

Answer:

hello : P(A and B) = 3/20

Step-by-step explanation:

events A and B are independent:

P(A and B) = P(A)×P(B)

P(A and B) = (1/4)×(3/5)

P(A and B) =3/20

continu ....

P(B/A)= P(A and B) / P(A)

3 0
3 years ago
Other questions:
  • When 0.5(20x – 50y + 36) – 0.25(–100x + 40y – 12) is simplified, what is the resulting expression?
    9·1 answer
  • What does it mean? I need help with this
    9·1 answer
  • on a trip spain , shelia bought a piece of jewelry that cost 56.75. she paid for it with her credit card, which charges a foreig
    13·1 answer
  • 3/4 + (1/3 ÷ 1/6) - (1/2) =
    12·2 answers
  • 4 is what % of 80. Show all of your work
    12·1 answer
  • How many times greater is the value 4 in 640,070 than the value of the 4 in 64,070
    9·1 answer
  • In the expression, what are the coefficients<br>​
    10·1 answer
  • Of the 140 pages in a book, 80% of them have illustrations. How many pages have illustrations?
    6·2 answers
  • I need help with my homwork
    11·1 answer
  • The variables x and y vary inversely. Use the given x and y values to write an inverse variation equation and find x given that
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!