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
dalvyx [7]
3 years ago
14

​ y=3x−5 y=x−1 ​ Is ( 2 , 1 )a solution of the system?

Mathematics
2 answers:
kotegsom [21]3 years ago
6 0

Answer: Yes, (2,1) is a solution.

Point for : (2,1)

Equation form : x=2 , y=1

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hope this helps you out! ☺

Aleks [24]3 years ago
5 0

Answer : (2,1) is a solution of the system.

Step-by-step explanation :

As we are given that:

y = 3x-5    ..........(1)

y = x-1      ..........(2)

Now equating equation 1 and 2, we get the value of 'x'.

3x-5 = x-1

3x-x = -1+5

2x = 4

x = 4/2

x = 2

Now put the value of 'x' in equation 2, we get the value of 'y'.

y = x-1

y = 2-1

y = 1

Thus, the value of x = 2 and y = 1 that means (2,1) is a solution of the system.

Hence, the (2,1) is a solution of the system.

You might be interested in
Pls help me answer question #4
Lapatulllka [165]

Answer:bottom line: 13 line on right: 6 1/2 Diagonal line: 13

4 0
2 years ago
Can someone explain how I multiply both sides ?
stellarik [79]

Answer:

x=3

Step-by-step explanation:

Given,

1 = 1/(x-2)

Multiply both sides by (x-2),

1*(x-2) = 1/(x-2) * (x-2)

x-2 = 1

Adding 2 on both sides,

x-2+2 = 1+2

x = 3

6 0
2 years ago
Please solve the eqution<br> Cos4x + cos2x - 2 =0
horrorfan [7]

cos4x = cos2x

We know that:

cos2x = 1-2cos^2 x

==> cos4x = 1-2cos^2 (2x)

Now substitute:

==> 1-2cos^2 (2x) = cos2x

==> 2cos^2 (2x) + cos2x - 1 = 0

Now factor:

==> (2cos2x -1)(cos2x + 1) = 0

==> 2cos2x -1 = 0 ==> cos2x =1/2 ==> 2x= pi/3

==> x1= pi/6 , 7pi/6

==> x1= pi/6 + 2npi

==> x2= 7pi/6 + 2npi

==> cos2x = -1 ==> 2x= pi ==> x3 = pi/2 + 2npi.

<span>==> x= { pi/6+2npi, 7pi/6+2npi, pi/2+2npi}</span>

6 0
3 years ago
On the first circle, what segment is a diameter? How long is it?
stiv31 [10]

Answer:

The segment that is the diameter is EB

It is 8 cm long

Step-by-step explanation:

6 0
3 years ago
What's 3 divided by 16
AlekseyPX
3/16= 0.1875
Though if you mean 16/3 it is 5.333.....
4 0
3 years ago
Read 2 more answers
Other questions:
  • Need help in math
    8·1 answer
  • Muhammad ate an average of 2.5% cookies per day
    13·1 answer
  • santosh is four more than three times the age of his cousin. if santosh is 49 years old, then what is the age of his cousin?
    7·1 answer
  • Factor -9z + 12<br><br> A; -3(2z + 4)<br> B: -9(z - 4)<br> C: -9(z + 12)<br> D: -3(3z - 4)
    7·1 answer
  • Find the perimeter of angle ABC with verticals A(1,-6), B(1,-3) and C(-4,-6)
    12·1 answer
  • Jayden rotates a trapezoid around its vertical axis of symmetry to make a solid figure. What is the shape of a vertical cross se
    5·1 answer
  • The surface area of a rectangular prism is increased by a factor of 16.
    6·2 answers
  • Choose the set of equivalent fractions that correctly uses the LCD for these fractions 3/4 and 1/6
    5·1 answer
  • Help Please<br> A- y = x<br> B- y = 2x<br> C- y = -2x<br> D- y = x + 2
    10·2 answers
  • Find the value of x. Only need 7 and 9 answered.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!