Question

There is a proportional relationship between your distance from a thunderstorm and the time from when you see the lightning and hear the thunder. If there are 9 seconds between the lightning and thunder, the storm is about 3 kilometers away. If you double the amount of time between the thunder and the lightning how far away is the storm?
3KM=9sec(T)x R 0.33=R d=18sec x 0.33 5.94=d

Answer 1

It must be 6km away.

Answer 2

A store sells 3 ears of corn for $1. They round prices to the nearest cent as shown in the table. Tell whether you would describe the relationship between cost and the number of ears of corn as a proportional relationship. justify your answer