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
V125BC [204]
3 years ago
12

I need help with this problem.please helpDirections: Solve each system by substitution.​

Mathematics
2 answers:
lidiya [134]3 years ago
5 0

Answer:

x=-1

y=-6

Step-by-step explanation:

To solve for x and y in 2x+3y=-20 start by substituting y for 6x

2x+3(6x)=-20 simplify the left side by multiplying 3 and 6x then add the product to 2x

20x=-20 now divide 20 on both sides

x=-1

now that you know what x is, you can solve for y

2x+3y=-20 substitute x for -1

2(-1)+3y=-20 now simplify by multiplying 2 and -1

-2+3y=-20 add -2 on both sides

3y=-18 now divide 3 on both sides

y=-6

artcher [175]3 years ago
3 0

Answer:

(-1,-6)

Step-by-step explanation:

Plug 6x for y into the bottom equation:

2x+3(6x)= -20

2x+18x= -20

20= -20

x= -1

Substitute -1 for x in the equation for y:

y=6(-1)

y=-6

I hope I could help :)

You might be interested in
Jordan's recipe calls for 3 cups of flour and 2 cups of water. what is the ratio of flour to water? if jordan wants to triple hi
allochka39001 [22]
You would multiply the cups of flour by 3 and the cups of water by 3. which would give you 9 cups of flour and 6 cups of water. the ratio is 1.5 cups of flour to 1 cup of water.
8 0
3 years ago
Read 2 more answers
Point m is the midpoint of kL. M(1,-1) and L(8,-7. What are the coordinates of point k?
Phoenix [80]

Answer: (-6, 5)

<u>Step-by-step explanation:</u>

Use the Midpoint Formula: \dfrac{(x_k, y_k)+(x_L,y_L)}{2}=(x_m, y_m)

Separate the x's and y's and solve them individually:

\dfrac{x_k+x_L}{2}=x_m\qquad \qquad \qquad \qquad\dfrac{y_k+y_L}{2}=y_m\\\\\\\dfrac{x_k+8}{2}=1\qquad \qquad \qquad \qquad \qquad \dfrac{y_k-7}{2}=-1\\\\\\x_k+8=2\qquad \qquad \qquad \qquad \qquad y_k-7=-2\\\\\\x_k\quad =-6 \qquad \qquad \qquad \qquad \qquad y_k\qquad =5

            So, the k-coordinate is (-6, 5)

3 0
3 years ago
Find the greatest common factor and the least common multiple of 16 and 20. The prime factorizations of each number are given.
kykrilka [37]

Answer:

GCF 4, LCM 80

Step-by-step explanation:

Since both 16 and 20 have two 2s as factor, their greatest common factor is 4.

The LCM is found by multiplying all of the remaining factors by the LCM:

16 still has (2 x 2), 20 still has (5), times the GCF (4)  so 2 x 2 x 5 x 4 = 80.

5 0
2 years ago
Write the equation of the line that passes through the points ( 1 , − 6 ) (1,−6) and ( 8 , 9 ) (8,9). Put your answer in fully r
mars1129 [50]

Answer:

10-15. 5-9. 34-56 78-3

4 0
3 years ago
Solve for x: 2x-4/5=x+4
shepuryov [24]

2x-4=5x+20

-3x=24

x=-8

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many inches is around a circle of 9 inches
    5·1 answer
  • The time to complete an exam is approximately Normal with a mean of 70 minutes and a standard deviation of 10 minutes. Using the
    13·1 answer
  • IN NEED OF HELP PLEASE !!! <br> ALSO EXPLAIN PLEASE
    9·1 answer
  •  NO ONE CAN ANSWER A parallelogram has an area of 37.72 m^ 2 and a height of 4.6 m. How long is the base of the parallelogram?
    13·1 answer
  • 13. The sum of 4 and three times a number is 19.
    5·2 answers
  • HELPPPPPP DUE AT 5PM
    15·1 answer
  • IAS 36. Impairment of asset. we are a photo
    11·2 answers
  • Question 8
    14·1 answer
  • The table below shows the approximate height of a ball thrown up in the air after x seconds. A 2-column table with 5 rows. The f
    5·2 answers
  • HELP ASAP<br> f(x)=x² what is g(x)?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!