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
sveta [45]
3 years ago
5

Solve by elimination 5x+6y =-2 15x + 4y= 22

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Answer:

(2,-2)

Step-by-step explanation:

sineoko [7]3 years ago
7 0

Answer:

(2, -2)

Step-by-step explanation:

Multiply the first equation by -3,and multiply the second equation by 1.

−3(5x+6y=−2)

1(15x+4y=22)

Becomes:

−15x−18y=6

15x+4y=22

Add these equations to eliminate x:

−14y=28

Then solve−14y=28for y:

−14y=28

−14y

−14

=

28

−14

(Divide both sides by -14)

y=−2

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

5x+6y=−2

Substitute−2foryin5x+6y=−2:

5x+(6)(−2)=−2

5x−12=−2(Simplify both sides of the equation)

5x−12+12=−2+12(Add 12 to both sides)

5x=10

5x

5

=

10

5

(Divide both sides by 5)

x=2

Answer:

x=2 and y=−2

You might be interested in
3D shapes that have only rectangles are called...?
IgorLugansk [536]

Answer:

cuboid

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Jill counted 20 pigs and chickens.
Ede4ka [16]
Raa that's hard but all I have to do is count how many chicken legs there r n then same w pigs
8 0
3 years ago
Question
puteri [66]

Answer:

The salt concentration of the mixed solution = 10%

Step-by-step explanation:

First assuming that the concentration of salt given is on a vol% basis.

First solution has 0.7 gallon of 5% salt

Amount of salt in this solution = 5% × 0.7 = 0.035 gallon

Second solution has 0.3 gallon of 22% salt

Amount of salt in this solution = 22% × 0.3 = 0.066 gallon

Total amount of salt in the resulting solution = 0.035 + 0.066 = 0.101 gallon

Total volume of the resulting solution = 0.7 + 0.3 = 1.00 gallon

Concentration of the mixture of salt = (0.101/1) = 0.101 = 10.1% = 10% to the nearest percent

Hope this Helps!!!

3 0
3 years ago
Based on the graph, how many students in a class of 180 students would have green as their eye color
kozerog [31]

Answer: look up alaskan pipeline

Step-by-step explanation:

5 0
3 years ago
PLZ HELP ITS DUE IN 28 MINUTES
Ilya [14]

Answer:

I think y and z = 45

4 0
3 years ago
Other questions:
  • A grand piano can weighton. How many<br> ounces can a grand piano weigh?
    6·1 answer
  • 34 is 25% of what numbet, please explain.
    7·2 answers
  • Please help me on this question , and picture is provided !
    11·1 answer
  • The diameter of a circle is 8. What is the area of the circle in terms of pi?
    6·1 answer
  • Please help me solve for x
    7·1 answer
  • A random variable is defined as a process or variable with a numerical outcome. Which of the following are random variables?
    9·1 answer
  • Benjamin’s garden is shaped like a rhombus the area of the garden is 336 ft. The height of the rhombus that represents his garde
    11·1 answer
  • A car cover a distance 300 miter in 50 second How much distance a car covers in 1 second​
    10·1 answer
  • Select the correct answer from each drop-down menu.
    12·1 answer
  • A bullet is found embedded in the wall of a room 2.2 m above the floor. The bullet entered the wall going upward at an angle of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!