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
iragen [17]
2 years ago
15

X - 2y = 83x = 19 + 4yhow to answer this through elimination or substitution method?​

Mathematics
1 answer:
adell [148]2 years ago
4 0

Answer:

The solution of the given equations

x = 3 and y =-2.5

Step-by-step explanation:

<u><em>Step(i):-</em></u>

  x - 2y = 8 ..(i)

3x = 19 +4y ..(ii)

By using substitution method

substituting  x = 2y +8 in equation (ii)

 ⇒  3( 2y +8) = 19 +4y

⇒   6y +24 = 19 +4y

⇒  6 y - 4y = 19 - 24

⇒   2 y = -5

   y = \frac{-5}{2} = -2.5

<u><em>Step(ii):-</em></u>

Substitute 'y' = -2.5 in equation (i) , we get

         x - 2y = 8

   ⇒  x - 2( \frac{-5}{2}) =8

  ⇒  x = 8 -5

      x = 3        

<u><em>Final answer:-</em></u>

The solution of the given equations

x = 3 and y =-2.5

You might be interested in
a plumber has a piece of pipe that is 2 meters long he needs to cut it into section of 10 centimeters long how many sections wil
ahrayia [7]
Since I can't post pictures in this answer, I will just tell you how to get the answer. For this question, you need to consider, how many centimeters go into 2 meters? Well, since 1 meter equals one hundred centimeters, 2 meters would equal 200 centimeters. And since we need to know how many 10 centimeter long sections there would be, then you need to divide 200 by 10. 200 divided by ten equals 20. So the answer would be 20 sections. The plumber is able to cut 20 sections. I hope that helped!
8 0
3 years ago
Read 2 more answers
Given: ΔXYZ AB is a midsegment parallel to XY. The slope of AB is 2 3 . What is the slope of XY?
stich3 [128]
The slope of XY is the same as the slope of AB because XY is parallel to AB. Parallel lines have the same slope. 
5 0
3 years ago
Read 2 more answers
-2x + 5 (1 -7x ) =190
luda_lava [24]
The answer is x= -5 ...explained... -2x + 5 -35x= 190...-37x +5 = 190 ... now subtract 190-5 = 185... divide 185 by - 37 and get -5
8 0
3 years ago
If you have the equation, y=2x+10 what’s x if y=24
jolli1 [7]

Answer: x=7

24=2x+10

24-10=14

14=2x

14/2=7

6 0
3 years ago
How many triangles can be constructed with side lengths of 9.6 cm, 11.6 cm, and 21.2 cm?
nignag [31]

Answer:  A) 0 triangles

============================================================

Explanation:

Adding up the two smaller sides gets us 9.6+11.6 = 21.2, but this result is not larger than the third side of 21.2

For a triangle to be possible, we need to be able to add any two sides and have the sum be larger than the third remaining side. This is the triangle inequality theorem.

I recommend you cutting out slips of paper with these side lengths and trying it out yourself. You'll find that a triangle cannot be formed. The 9.6 cm and the 11.6 cm sides will combine to form a straight line that is 21.2 cm, but a triangle won't form.

As another example of a triangle that can't be formed is a triangle with sides of 3 cm, 5 cm, and 8 cm. The 3 and 5 cm sides add to 3+5 = 8 cm, but this does not exceed the third side. The best we can do is form a straight line but that's not a triangle.

In short, zero triangles can be formed with the given side lengths of 9.6 cm, 11.6 cm, and 21.2 cm

3 0
2 years ago
Other questions:
  • The walls and ceiling of a storage shed are made of aluminum. The storage shed measures 8 feet wide, 6 feet long, and 5 feet tal
    9·2 answers
  • Chris joined a website that offers a special rate for music downloads to its members. The membership costs $19.95 and then you c
    7·1 answer
  • How to add a + b using 45a +90b
    5·1 answer
  • Suppose that 10% of the fields in a given agricultural area are infested with the sweet potato whitefly. One hundred fields in t
    9·1 answer
  • Which symbol correctly compares the two fractions?
    12·1 answer
  • Which of these is an example of delayed purchasing?
    14·2 answers
  • Tammy is making 5 batches of punch for the school's Spring Carnival. The recipe for one batch uses 1 liter of orange juice, 650
    6·1 answer
  • HOW DO YOU DO THIS? PLEASE HELP
    5·1 answer
  • Which graph represents a function? please help
    14·2 answers
  • Does the graph represent a function
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!