$\"\"$

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The direct variation formula is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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Divide each side by 2.5.

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$\"\"$

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$\"\"$

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The direct variation equation is $\"\"$ . $\"\"$

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Find the value of y, substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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The value of $\"\"$ .