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Byju's Answer
Standard X
Mathematics
Classification of Pair of Linear Equations
If the lines ...
Question
If the lines
3
x
+
2
k
y
=
2
and
2
x
+
5
y
+
1
=
0
are parallel, then find the value of
k
.
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Solution
Suppose that we have to parallel lines
a
1
x
+
b
1
y
+
c
1
=
0
&
a
2
x
+
b
2
y
+
c
2
=
0
then,ratio of coefficient of x and y are equal i.e.
a
1
a
2
=
b
1
b
2
.
Now, according to given equations
3
x
+
2
k
y
=
2
2
x
+
5
y
+
1
=
0
compairing coeffient of x& y and applying rule,
3
2
=
2
k
5
⇒
4
k
=
15
So value of
k
=
15
4
.
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2
Similar questions
Q.
If the lines given
3
x
+
2
k
y
=
2
and
2
x
+
5
y
+
1
=
0
are parallel, then the value of
k
is:
Q.
If the lines given by
3
x
+
2
k
y
=
2
and
2
x
+
5
y
+
1
=
0
are parallel, then the value of
k
is:
Q.
If the lines given by
3
x
+
2
k
y
=
2
and
2
x
+
5
y
+
1
=
0
are parallel, then the value of k is
(a)
-
5
4
(b)
2
5
(c)
3
2
(d)
15
4
Q.
Find the value of
k
, for which the lines given by
3
x
+
2
k
y
=
2
and
2
x
+
5
y
+
1
=
0
are parallel.
Q.
If the lines given by 3x + 2ky = 2 and 2x + 5y = 1 are parallel, then the value of 'k' is.
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