Question

When belinda walks to school in the morning, it takes her 12 minutes to walk the 1 kilometer. When she walks home after school with her little sister, it takes twice as long. Does belindas speed increase or decrease when she walks with her sister?

Answer 1

Decrease

Explanation:

Belinda takes 12 minutes to walk to school and it takes TWICE AS LONG to walk back home from school because she has her little sister. Therefore Belinda's speed does in fact "decrease" when she walks home from school with her sister.

Hope this helps.