Answer :
[tex]6\ km\ in\ 3\ hours\\\\
10\ km\ in\ x\ hours\\\\
proportion:\\
6-3\\
10-x\\\\
cross\ multiplication\\\\
6x=3*10\\\\
6x=30\ \ \ | divide\ by\ 6\\\\
x=5\\\\ It\ will \ take\ 5\ hours.[/tex]
Answer:
5 hours
Step-by-step explanation:
6/3 is 2 so every hour she walks 2 kilometers meaning to walk 10 kilometers she would have to divide 10/5=5 so it would take 5 hours to walk 10 kilometers