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There is a proportional relationship between the number of oatmeal raisin cookies Jane buys, x, and their total cost (in dollars), y.
x (cookies) y (dollars)
6 $ 6
8 $ 8
15 $ 15
18 $ 18
Write an equation for the relationship between x and y.
y=

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frika

Given proportional relationship between the number of oatmeal raisin cookies Jane buys, x, and their total cost (in dollars), y shows you that

y=x.

You can check it:

  • when x=6 cookies, then y=$6 (x=y);
  • when x=8 cookies, then y=$8 (x=y);
  • when x=15 cookies, then y=$15 (x=y);
  • when x=18 cookies, then y=$18 (x=y).

Answer: y=x.

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