$\"\"$

Jennie ran the first $\"\"$ of a marathon in $\"\"$ .

Find her take time to take finish the $\"\"$ .

Let $\"\"$ be the time taken to run $\"\"$ with same pace.

Therefore speed of the Jennie is same.

$\"\"$ .

Solve the equation.

$\"\"$ (Original propotion)

$\"\"$ (Cross products)

$\"\"$ (Simplify)

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

$\"\"$ (Simplify)

Therefore, she takes $\"\"$ to finish the $\"\"$ .

$\"\"$

Jennie takes $\"\"$ to finish the $\"\"$ .