Question

the algebraic expression x/5 can be used to calculate the distance in miles that you are from a flash of lightning, where x is the number of seconds between the time you see a flash of lightning and the time you hear the thunder. Calculate the distance that you are from the flash of lightning if you hear the thunder 2 seconds after you see the lightning

Answer 1

In this case x=2.

Plugging this into the expression gives us 2/5 miles from the flash of lightning.

2/5 = .4 miles