## Algebra: A Combined Approach (4th Edition)

$3\frac{1}{8}$ cubic meters
Let $P$ be the pressure. Let $V$ be the volume. $P=\frac{k}{V}$ $P=1250; V=2$ $1250=\frac{k}{2}$ $k=2500$ $P=\frac{2500}{V}$ $P=800$ $800=\frac{2500}{V}$ $V=\frac{2500}{800}$ $V=\frac{25}{8}=3\frac{1}{8}$ cubic meters