Answer
Fill the blanks with
$\displaystyle \frac{10000}{x},\qquad \frac{10000}{x+2}$
Work Step by Step
Dividing the cost into $x$ equal parts,
the cost per person equals $\displaystyle \frac{10000}{x}$.
Two more people than $x$ means $x+2$ people
Dividing the cost into $x+2$ equal parts, the cost per person equals $\displaystyle \frac{10000}{x+2}$.
