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
Lina20 [59]
3 years ago
11

Solve this system of equations. 3x+4y=4 -x-3y=7

Mathematics
2 answers:
JulsSmile [24]3 years ago
4 0

Answer:

x = 8, y = -5

Step-by-step explanation:

Multiplying the 2nd equation by 3, we get -3x-9y = 21. Then eliminating with the first equation we get -5y = 25. y = -5. Substituting this into the original equation, we get x = 8.

Dmitry_Shevchenko [17]3 years ago
3 0

Answer:

x=8  y=-5

Step-by-step explanation:

3x+4y=4                   3x+4y=4

3(-x-3y=7)=              <u>-3x-9y=21</u>

-3x-9y=21                      -5y=25

                                       y=-5

3x+4(-5)=4

3x-20=4

3x=24

x=8

You might be interested in
What does 80 = 2m mean
Marta_Voda [28]

80=2m means that m=40

i figured this out by getting rid of the 2 by dividing both sides by 2


6 0
4 years ago
Read 2 more answers
9
barxatty [35]

Your equation for the first point will be y=x+50

Explanation...

The x is zero so we just only put x. The y is 50 so we input a 50 giving us y=x+50.

Your equation for the second point will be y=2x+100.

Explanation...

Your slope is 2 so we input that and the y intercept is 100 giving us the equation y=2x+100.

Your equation for the third point will be y=4x+150

Explanation...

Your slope is 4 so we input that. Your y intercept is 150 so we input that. It gives us the equation y=4x+150.

6 0
3 years ago
Find the value of 9x + 4y when x = 4 and y = -3
Serga [27]

Answer:

24

Step-by-step explanation

since the values are given, we can rewrite this equation.

(9 x 4) + (4 x -3)

36 + -12

24

5 0
3 years ago
Read 2 more answers
In a country in 2007, there were 38.6 million people who were foreign-born. The population at the same time was 284,000,000. Wha
Allisa [31]
40 million foreign-born representing 13% of the population resided in the United States. The chart below shows the trends by decade, 1860-2010. It is adapted from the more detailed table that follows, which appears in Audrey Singer’s article,
3 0
3 years ago
Mrs. Walker is tracking the odometer readings on her car for one week to see how much she uses her car for work and how much for
Dahasolnce [82]

Answer:

1738

Step-by-step explanation:

5 0
4 years ago
Other questions:
  • In each triangle p is the circumcenter use circumcenter theorem to solve for the givin values
    14·2 answers
  • A committee of four is chosen at random from a group of 66 women and 55 men. Find the probability that the committee contains at
    15·1 answer
  • If the legs of a right triangle are both 8 cm, find the area of the triangle. A) 8 cm2 B) 16 cm2 C) 32 cm2 D) 64 cm2
    15·2 answers
  • The diagram shows the frame of a bicycle. Find the length, l, of the cross bar.
    6·1 answer
  • 你好!Please help me with this question. I will mark the correct answer brainlist, this is worth 20 points.
    15·1 answer
  • Solve. 21&lt;7 can someone help
    12·2 answers
  • 2+a/4=-1 invervse opperation
    5·1 answer
  • The mass of a basket with 25 chocolate bars is 1110g. The mass of the empty basket is 310 g. A. What is the mass of 1 chocolate
    15·1 answer
  • If a regular polygon has 5 sides what is the smallest angle of rotational symmetry for the polygon? If necessary round to the hu
    12·1 answer
  • Linear Application=27500 2500g represents the balance in your college payment account-The function C(q) =after q quarters.Interp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!