$\"\"$

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$\"\"$ varies directly as $\"\"$ and $\"\"$ varies inversely as $\"\"$ .

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Find $\"\"$ when $\"\"$ and $\"\"$ and $\"\"$ when $\"\"$ and $\"\"$ .

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Consider the values are $\"\"$ and $\"\"$ . \ \

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Find $\"\"$ .

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$\"\"$ varies directly as $\"\"$ and $\"\"$ goes in the numerator and $\"\"$ varies inversely as $\"\"$ and $\"\"$ goes in the denominator.

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$\"\"$

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$\"\"$ (Solve for $\"\"$ )

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$\"\"$ (Set the two proportions equal to each other)

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

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$\"\"$ (Cross multiply)

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$\"\"$ (Simplify)

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

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$\"\"$ (Cancel common term)

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Therefore, the value of $\"\"$ is $\"\"$ .

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$\"\"$

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When $\"\"$ and $\"\"$ and the value of $\"\"$ .