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Mathematics
Mathematics
Problem
A straight line is represented by the equation
k
x
+
4
y
=
20
kx + 4y = 20
k
x
+
4
y
=
20
. Its graph passes through the points
(
5
,
0
)
(5,0)
(
5
,
0
)
and
(
0
,
5
)
(0,5)
(
0
,
5
)
. Find the value of
k
k
k
.
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