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
Alexxx [7]
2 years ago
13

How many solutions does the following system have? 2x+3y=1; -3x-2y=-1

Mathematics
1 answer:
zysi [14]2 years ago
8 0

Answer:

x = 1/5 , y = 1/5

Step-by-step explanation:

Solve the following system:

{2 x + 3 y = 1 | (equation 1)

-3 x - 2 y = -1 | (equation 2)

Swap equation 1 with equation 2:

{-(3 x) - 2 y = -1 | (equation 1)

2 x + 3 y = 1 | (equation 2)

Add 2/3 × (equation 1) to equation 2:

{-(3 x) - 2 y = -1 | (equation 1)

0 x+(5 y)/3 = 1/3 | (equation 2)

Multiply equation 1 by -1:

{3 x + 2 y = 1 | (equation 1)

0 x+(5 y)/3 = 1/3 | (equation 2)

Multiply equation 2 by 3:

{3 x + 2 y = 1 | (equation 1)

0 x+5 y = 1 | (equation 2)

Divide equation 2 by 5:

{3 x + 2 y = 1 | (equation 1)

0 x+y = 1/5 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

{3 x+0 y = 3/5 | (equation 1)

0 x+y = 1/5 | (equation 2)

Divide equation 1 by 3:

{x+0 y = 1/5 | (equation 1)

0 x+y = 1/5 | (equation 2)

Collect results:

Answer: {x = 1/5 , y = 1/5

You might be interested in
Using the technique in the model above, find the missing sides in this 30°-60°-90° triangle.
lina2011 [118]
For this case what you should do is use the following trigonometric relationship:
 sin (x) = C.O / h
 Where
 x: angle
 C.O: opposite leg
 h: hypotenuse
 Substituting the values we have:
 sen (60) = long / h
 sen (60) = 3 / h
 h = 3 / sin (60)
 h = 3.46
 Answer:
 h = 3.46
7 0
3 years ago
Read 2 more answers
Which fraction and decimal forms match the long division problen?
sweet-ann [11.9K]

Answer:

B because it is a single digit number with added decimals

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Whats 4x=28? whats the x for the answer?
Alik [6]
76 is the answer for x.
5 0
3 years ago
Which expression is equivalent to
Varvara68 [4.7K]

Answer:

the given expression is equivalent to

Step-by-step explanation:

\frac{ \sqrt[4]{200} }{2}

5 0
2 years ago
2.6 Puzzle time how can you make sure to start a fire with two sticks?
enyata [817]

Answer:

"Make sure one of them is a match"

Step-by-step explanation:

It takes a little practice and above all to generate heat through friction. By raising the temperature of the woods, it is possible to reach the ignition temperature through friction.

Fires require good equipment and good technique. The majority of times it fails is due to a lack of technique and equipment. This can make learning difficult.

For wood selections, you generally want to comply with the following:

  • Dry Tinder
  • You should be able to press the wood. If you can't, then it is too difficult.
  • Wood not very strong but not soft
  • Not sap in the wood

Make the friction forming a 90 degree angle between them, like a cross. Keep one of the sticks supported on the floor vertically, and the other horizontally rubbing it against it at rapid speed, at intervals.

Under this wood put dry tinder that is able to ignite quickly once you generate the fire.

And for the Puzzle remember the orden of the words:

<h2>Make sure one of them is a match. </h2>

Use tree wood, rub and heat until ignition is generated.

5 0
3 years ago
Other questions:
  • PLEASE HELP VERY LIMITED ON TIME!!!
    6·1 answer
  • NEED YOUR HELP ASAP!!!!!
    12·1 answer
  • What is the solution to the system of equations shown in the graph?
    12·2 answers
  • The number of tropical fish that an aquarium can hold depends on the volume of the fish tank. the interior dimensions of the fis
    13·1 answer
  • Factor the expression. 4x(x^3 − 6) − 7(x^3 − 6) HELP ASAP!!
    6·1 answer
  • Timothy is re-arranging his marble collection.he has five identical blue marbles,five identical green marbles and three identica
    8·2 answers
  • What is 2/3 of 90 degrees equal
    13·1 answer
  • In triangle MNO, angle N is 5 times the measure of angle M, and angle O is 4 times the measure of angle M
    14·1 answer
  • My sister needs help w this but i don’t understand lol
    12·2 answers
  • bruno prepared a water dispenser with 8 liters of lemonade. he sells one-liter glasses for $4 each. the equation e = 4g can be u
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!