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At target, they have 4 DVDs for $36. What is the constant of proportionality that relates the cost of DVDs, y, to the number of DVDs bought, x?

User Nalin Ranjan
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2 Answers

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22 votes
Y=9x Bc you multiply and use algebra
User Martin Rohwedder
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9 votes
9 votes

Answer:

Explanation:

Cost of 4 DVDs = $36

Cost of 1 DVD = 36÷ 4 = $9

Cost of x DVD = 9 *x = 9x

y = 9x

User Flowoverstack
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