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3 years ago

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5. Cardi B is buying packs of gum from the grocery store. The table shows the total cost of the gum based on the number of packs

bought. Which of the following represents the constant of proportionality?

1 answer:

ratelena [41]3 years ago

6 0

Let me see the graph.

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$\overline{XS}\cong\overline{YT}\Rightarrow 3m+7=4.2m+5\ \ \ |-7\\\\3m=4.2m-2\ \ \ \ |-4.2m\\\\-1.2m=-2\ \ \ \ |:(-1.2)\\\\m=\dfrac{2}{1.2}\\\\m=\dfrac{20}{12}\\\\m=\dfrac{5}{3}\to m=1\dfrac{2}{3}$

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