Q: You are driving at 50 miles per hour. If you decrease the time it takes you to travel 1 mile by 8 seconds, what is your new speed?
A: 56.25 mph (miles/hour)
At 50 miles per hour...one hour is 3600 seconds
3600 seconds/50 miles = 72 seconds per miles
If you decrease the time by 8 seconds to 64 seconds per mile
Then in 3600 seconds / 64 seconds per mile = 56.25 mph
