Question

Cilia cycles 4.2 km every morning. How many feet are in 4.2 km, given that 1 mile = 1.609 km and 1 mile = 5,280 feet?

Answer 1

\[\frac{ 4.2~km }{ }\frac{ 1~mile}{ 1.609~km }\frac{ 5,280~feet }{ 1~mile }\]
notice how the units cancel out and you're left with feet

Answer 2

Thanks