Question

If a plane flies 612 km per hour, approximately how many kilometres will it travel in 13 hours?

Answer 1

$612km...........1h \\ x...................13h \\ \\ x=\frac{612*13}{1} \\ \\ \boxed{x=7956km}$

Answer 2

$612 \frac{km}{hr} * 13 = 7,956 \frac{km}{hr}$