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
tamaranim1 [39]
2 years ago
12

What is the solution to the system of equations?

Mathematics
1 answer:
MariettaO [177]2 years ago
7 0

Answer:

x=-4 y=-1

Step-by-step explanation:

Let's solve your system by substitution.

−3x−8y=20;y=5x+19

Rewrite equations:

y=5x+19;−3x−8y=20

Step: Solve y=5x+19for y:

y=5x+19

Step: Substitute5x+19foryin−3x−8y=20:

−3x−8y=20

−3x−8(5x+19)=20

−43x−152=20(Simplify both sides of the equation)

−43x−152+152=20+152(Add 152 to both sides)

−43x=172

−43x

−43

=

172

−43

(Divide both sides by -43)

x=−4

Step: Substitute−4forxiny=5x+19:

y=5x+19

y=(5)(−4)+19

y=−1(Simplify both sides of the equation)

Answer:

x=−4 and y=−1

 

You might be interested in
Form and solve an equation for x.<br> 6x +40<br> Х<br> 3x + 100
Blababa [14]

Answer:

x = 22

Step-by-step explanation:

The sum of the angles round a point is 360°

Sum the given angles and equate to 360

x + 6x + 40 + 3x + 100 = 360

10x + 140 = 360 ( subtract 140 from both sides )

10x = 220 ( divide both sides by 10 )

x = 22

5 0
2 years ago
Find the number that belongs<br> in the green box.<br><br> Round your answer to the nearest tenth.
Illusion [34]

Answer:

24.2

Step-by-step explanation:

There is but one answer to this. It appears below.

Let's try it out and see what happens. We'll do it the way it sits.

Sin 40/8 = sin(x) / 7             Multiply both sides by 7

7* Sin(40) / 8 = sin(x)

Sin(40) = 0.6428

7 * 0.6428 / 8 = sin(x)

.56245 = sin(x)

x = sin-1(0.56245)

x = 34.23

Rounded to the nearest tenth, it is 24.2

3 0
3 years ago
samuel takes 5 coolers to his basketball game each cooler holds 9 liters of water how many liters of water altogether did he tak
alekssr [168]
5 times 9 equals 45. The answer is 45
3 0
2 years ago
Read 2 more answers
Which letter has two lines of symmetry? Y S M X<br> plzz help due tomorrow
Neporo4naja [7]

Answer:

X

Step-by-step explanation:

one is going vertical and the the other is horizontal

4 0
2 years ago
Read 2 more answers
Help, please iiiiiiiiiiiiiii nnnnnnnnnneeeeeeedddddd iiiiiiiiitttttt
trasher [3.6K]

Answer:it’s a

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Gia reads that 0.57 of her school is male and 0.45 of her cousin’s school is male. She says that her school must have more males
    12·1 answer
  • I have a flower vase with a 6 " diameter and is 12 " tall I want to fill it 2/3 of the way full how many cubic inches will I fil
    12·1 answer
  • 2 2/3 plus 3.5 please help me
    7·2 answers
  • What value of x is in the solution set of 3(x – 4) &gt; 5x + 2?<br>​
    13·2 answers
  • Mean and median of 47,49,54,50,48,47,55​
    15·1 answer
  • 8. is 5/14 greater than 0.33​
    14·2 answers
  • Malik scores 24 goals in 8 soccer games. At that rate, how many goals will he sore in 15 games?
    12·1 answer
  • Please help :)
    9·1 answer
  • What is the sum of the sequence 2+5+8+11+...+296
    6·1 answer
  • If the graph below corresponds to the equation y = x2 + bx + c, what are the values of b and c?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!