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Gwar [14]
3 years ago
9

Solve the system of equations by substitution.3x+2y=10 y=3x-4x= y=​

Mathematics
1 answer:
AfilCa [17]3 years ago
4 0

Answer:

x=2;  y=2

Step-by-step explanation:

3x+2y=10

y=3x-4

We can substitute y from the first equation with the second equation:

3x+2(3x-4)=10

3x+6x-8=10

9x=18

x=2

Now plug this in to any of the equations (i used second equation):

y=3(2)-4

y=6-4

y=2

Check your answers:

y=3x-4

2=3(2)-4

2=6-4

2=2

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Find a formula for the nth term in this
stepan [7]

The formula of nth term is  = 10 - 3n

What is AP?

  • A series of numbers called an arithmetic progression or arithmetic sequence (AP) has a constant difference between the terms. Take the numbers 5, 7, 9, 11, 13, and 15 as an example. . . is a sequence of numbers having a common difference of two.
  • The n-th term of the sequence is given by:, if the beginning term of an arithmetic progression is and the common difference between succeeding members is, then
  • If the AP contains m phrases, then denotes the final term, which is given by:
  • The term "finite arithmetic progression" or "arithmetic progression" refers to a finite segment of an arithmetic progression. An arithmetic series is the total of a finite arithmetic progression.

Acc to our question-

  • For the nth term in an algebraic series
  • U(n) = a + (n - 1)d
  • the number of terms is n.
  • The first term is a.
  • d is the typical difference
  • From the preceding sequence
  • a = 7
  • d = 4 - 7 = - 3
  • The nth term's formula is
  • U(n) = 7 + (n - 1)-3
  • = 7 - 3n + 3
  • The ultimate solution is
  • = 10 - 3n

Hence,The formula of nth term is  = 10 - 3n

learn more about AP click here:

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3 0
1 year ago
What is the solution to the equation x + 8.5 = 64.5? 7.6 48 56 73
Bogdan [553]
The solution to x + 8.5 = 64.5 is 56.

    x + 8.5 = 64.5
       - 8.5   - 8.5
---------------------------
    x = 56


4 0
3 years ago
Read 2 more answers
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