Question

The value of k for which equation
3x +5y=7 and kx +10y=9
represents parallel lines​

Answer 1

Answer:

answer is 6 this is the answer for this question

Answer 2

$\hookrightarrow \sf Since \: the \: lines \: are \: parallel</p><p>$

$\frac{ a_{1} }{a_{2}} = \frac{ b_{1} }{b_{2}} \: \cancel{=} \: \frac{ c_{1} }{c_{2}}$

$\sf \: therefore$

$\frac{3}{k} = \frac{5}{10} \\ 3 \times 10 = 5k \\ k = \frac{ \cancel{30} \: 6}{ \cancel5 \: 1} \\ \boxed{k = 6}$

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