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
nadya68 [22]
2 years ago
12

Solve each system of equations using the elimination method 3x+8y=2 4x-2y=-10

Mathematics
1 answer:
LenaWriter [7]2 years ago
8 0

x = -2

y = 1

let's multiply second equation by 4 to get a common coefficient of y variable.

16x-8y=-40

add the equations

3×+8y=2

16x-8y=-40

----------------

3x+16x = -38

19x = -38

x = -2

substitute x

3×-2 + 8y = 2

-6 + 8y = 2

8y = 2+6

y = 1

check the answer

-6+8 = 2

-8-2= -20

You might be interested in
A jar has 6 red marbles and 4 blue marbles. If 2 marbles are chosen, one at a time without replacement, what is the probability
Juliette [100K]

1/3 Probability both are red

red picked first:

6/10

red picked second:

5/9 (9 as first red marble not replaced so 5 red marbles remaining and 4 blue marbles still)

6/10 * 5/10 = 1/3

Hope that helps!!

7 0
3 years ago
What’s (2.5,6) dilated by a scale factor of 2?
vodka [1.7K]

Answer:(5,12)

Step-by-step explanation: 2.5 x 2= 5

6 x 2= 12

3 0
2 years ago
Determine the x- and y- intercepts for the graph defined by the given equation.
777dan777 [17]

Answer:

y-intercept is (0,8)

c. x-intercept is (-8, 0)

Step-by-step explanation:

y=x+8

x=0

y+0=8

y=8

y=0

y=x+8

0=x+8

x=-8

7 0
3 years ago
Read 2 more answers
Please help me with this , it would mean alot​
algol [13]

Answer:

Step-by-step explanation:

21-26. a = v - u / t

=> a = 47 - 19 / 5

=> a = 28 / 5

=> a = 5.6 m/s²

27-32. avg. speed = distance / time

=> 40 m / 10 s

=> 4 m/s

33-38. velocity = distance / time

=> v = 150 / 40

=> v = 15 / 4

=> v = 3.75 m/s

4 0
2 years ago
Find the solution to the system by graphing
ddd [48]
After graphing the lines, you can see that the solution is (4, -1)

3 0
2 years ago
Other questions:
  • How do I graph g(x)=f(x)+5
    5·1 answer
  • To decrease an amount by 85% what single multiplier would i need to use?
    11·1 answer
  • Given: 4n^2 + 25 = -20x, what is the value of the discriminant?
    6·1 answer
  • -3k + 3(k - 6) + 18
    8·1 answer
  • Your uncle won the powerball jack[ot and decided to give you 50000 dollars. You want to save this money for college so you find
    13·1 answer
  • For the following right triangle, find the side length : Round your answer to the nearest hundredth.
    11·1 answer
  • What is the answer to 2.5 divided by 5
    10·1 answer
  • Please help<br><br>4(4+2x)=x(x+5)​
    9·1 answer
  • Find the area of this parallelogram
    15·1 answer
  • How many milliliters are equal to 6.189 liters?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!