Question

solve the equations by any method: 2x+7y=11 and 5x+35/2y=25​

Answer 1

Step-by-step explanation:

Brainly.in

What is your question?

1

aakira1

22.05.2018

Math

Primary School

+5 pts

Answered

Show that the following pair of equation is inconsistent.

2x + 7y = 11 , 5x+35y/2 = 25.

2

SEE ANSWERS

Log in to add comment

Answer

5.0/5

5

Panzer786

Genius

4.9K answers

510.9K people helped

Heya !!!

2X + 7Y = 11-----------(1)

5X + 35Y/2 = 25

10X + 35Y - 50 = 0--------(2)

These equations are in the form of A1X+B1Y+C1 = 0 and A2X+B2Y+C2 = 0 Where ,

A1 = 2 , B1 = 7 , C1 = -11

And,

A2= 10 , B2 = 35 and C2 = -50

Therefore,

A1/A2= 2/10 , B1/B2 = 7/35 = 1/5 and C1/C2 = -11/-50 = 11/50

Clearly,

A1/A2= B1/B2 not equal C1/C2

1/5 = 1/5 not equal 11/50

The given pair of equations has a unique solution. It is consistent.