Math, asked by fernandesveron1999, 1 month ago

The pair of equations 3x-5y=7 And -9x+10y=7 have?

Answers

Answered by siwanikumari42
2

Answer:

Correct option is

A

1

Given 3x+5y=7⟶(1)

2px+3y=1⟶(2)

For equation to have unique solution, then,

a

2

a

1

=

b

2

b

1

here,

a

2

a

1

=

2p

3

b

2

b

1

=

3

5

2p

3

=

3

5

⟹p

=

10

a

For all values of p except

10

9

, the given lines represents intersecting lines.

Answered by aryanagarwal466
0

Answer:

The pair of equations has unique solution.

Step-by-step explanation:

It is given that there are two equations given.

3x-5y=7

and

-9x+10y=7

There are three possible solutions.

If there is no solution, the lines are parallel.

If there is unique solution, the lines are intersecting.

If there are infinite solutions, the lines are overlapping.

If a_{1} =3, a_{2} =-9

b_{1} =-5, b_{2} =10

Here, we can see that

\frac{3}{-9 } =\frac{-5}{10 }

-\frac{1}{3 } \neq -\frac{1}{2 }

\frac{a_{1} }{a_{2} } \neq \frac{b_{1} }{b_{2} }

It has unique solution. The lines are intersecting.

#SPJ3

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