$\"\"$

$\"\"$ varies directly as $\"\"$

$\"\"$ when $\"\"$ .

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

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

Find $\"\"$ .

$\"\"$ (Direct variation)

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

$\"\"$ (Cross multiply)

$\"\"$ (Simplify)

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

$\"\"$ (Cancel common term)

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

When $\"\"$ , $\"\"$ .