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
FromTheMoon [43]
3 years ago
13

Solve independent system equations for: 5x-9y=-6510x-3y=20x=?y=?​

Mathematics
1 answer:
Sergio039 [100]3 years ago
3 0
5x-9y=-65
10x-3y=20

Multiple the first equation by 2
10x-18y=-130
10x -3y=20
Then subtract the two equations to get rid of the x

21y=-150
Divide the -150 by 21
Y=-7.14

Plug the y into the original equation. (Either one)

5x-9(-7.14)=-65
5x-64.28=-65
Then add 64.28 to the -65
5x=-0.72
Divide by 5
X=-0.144

I hope this is right
You might be interested in
Please help marking brainliest QUICK
blsea [12.9K]

Answer:

50 lbs.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which fraction is equivalent to 5(z+3)-4(1+p)?<br><br> A. 15z-4p<br> B. 5z+19+4p<br> C. 5z+11-4p
Mila [183]
C 5z+11-4p.

5(z+3)-4(1+p)
5z+15-4-4p
5z+11-4p
8 0
3 years ago
Three ballet dancers are positioned on stage. Elizabeth is straight behind Hannah and directly left of Manuel. If Hannah and Eli
ki77a [65]

Answer: Elizabeth and Manuel have a distance of 4 meters between them.

Step-by-step explanation: Please refer to the picture attached.

From the information given, Elizabeth is directly behind Hannah and directly left of Manuel. That means we have three points which are HEM, that is, we now have triangle HEM. The longest side (hypotenuse) which is the distance between Hannah and Manuel is given as 5 meters while the other side the distance between Hannah and Elizabeth is given as 3 meters.

We shall apply the pythagoras theorem in solving for the unknown side, EM.

The Pythagoras theorem states thus;

AC² = AB² + BC²

Where AC is the hypotenuse, and AB and BC are the other two sides.

Substituting for the known values, we now have;

5² = 3² + EM²

25 = 9 + EM²

Subtract 9 from both sides of the equation

16 = EM²

Add the square root sign to both sides of the equation

√16 = √EM²

4 = EM

Therefore the distance between Elizabeth and Manuel is 4 meters

8 0
3 years ago
Lauren bought g golf balls. The balls came in 10 packages. Write an expression that shows how many golf balls were in each packa
mezya [45]
G/10
g amount into 10 different sections.
6 0
3 years ago
What's the answer ?<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B255%20-%2030%7D%20" id="TexFormula1" title=" \sqrt{255
Aloiza [94]

Answer:

\sqrt 255-30

= -14.0312805773

7 0
3 years ago
Read 2 more answers
Other questions:
  • A single die is rolled twice. Find the probability of rolling an oddnumber the first time and a number greater than 2 the second
    5·1 answer
  • The owner of an electronics store received a shipment of MP3 players at a cost of 64.25 each. If he sells the MP3 players for 99
    9·1 answer
  • You have a bank account that you go to every week. The account initially has $500. You take out 50% of the amount and put in 20%
    12·1 answer
  • How do you graph the linear function g(x)=−4+7x
    10·2 answers
  • 42 = 7r<br> Answer the question.
    12·2 answers
  • Find an expression for the area of this rectangle<br><br> (2x+1) (x+8)
    12·2 answers
  • How do I solve this?
    8·2 answers
  • En que consiste la jerarquía de operaciones?
    5·1 answer
  • What are the lengths of the other two sides of the triangle? O AC = 5 and BC = 5 O AC=5 and BC =515 O AC = 5/5 and BC = 5 O AC =
    15·1 answer
  • The ratio of deer to chickens is 5:3. If there are a total of 160 animals, how many are chickens?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!