Question

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Jason loves to wear socks with crazy patterns. He finds a great deal for these
kinds of socks at his favorite store, Rock Those Socks. There is a proportional
relationship between the number of pairs of socks that Jason buys, x, and the
total cost (in dollars), y.



Jason can buy 2 pairs of socks for $4. Write the equation for the relationship between x and
y.
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Answer 1

y = 2x

Explanation:

There is a proportional relation between the number of pairs of socks that Jason buys,x, and the total cost (in dollars), y.

Let us assume that the relation is y = kx ..... (1)

{Where k can be assumed to be the constant of proportionality}

Now, given that Jason can buy 2 pairs of socks for $4.

So, from equation (1), we can write 4 = 2k, ⇒ k = 2

Therefore, the equation (1) becomes y = 2x. (Answer)