$\"\"$

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Let $\"\"$ , and Find the $\"\"$ .

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Method 1: Using the product rule.

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Product rule for inverse variations: $\"\"$ .

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$

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$\"\"$

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Apply division property of equality: If a = b then $\"\"$ .

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$\"\"$ (Divide each side by 7)

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$\"\"$

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$\"\"$

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$\"\"$

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Method 2: Using the proportion rule.

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proportion rule for inverse variations: $\"\"$ .

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$\"\"$ (Substitute $\"\"$ ) $\"\"$

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Apply cross product property: $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ (Divide each side by 7)

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$\"\"$

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$\"\"$

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$\"\"$

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The value of $\"\"$ .