Question

Find K, so that X = 2 is the solution of. KX +5 = 9.
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Answer 1

Answer:

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Step-by-step explanation:

ANSWER

The cost of cloth is directly proportional to the number of metres bought.

So, if 5 metres cloth costs Rs48, then 1 metre cloth will cost Rs

5

48

,

And 23 metres will cost 23×Rs

5

48

=Rs220.8

Answer 2

Answer:

$k \: \times x + 5 = 9 \\ k \times 2 + 5 = 9 \\ 2k + 5 = 9 \\ 2k = 9 - 5 \\ 2k = 4 \\ k = \frac{4}{2} \\ k = 2$

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