A race car driver won a 700 mile race with a speed of 155.5 miles per hour. Find drivers time?

2 Answers
Jun 14, 2018

It takes the driver approximately 271 minutes or 4 hours 31 minutes to travel 700 miles

Explanation:

We can think of it as:

#155.5 "miles"=60 "minutes"#
#700 "miles"= x "minutes"#

#x=(700times60)/155.5=270'6'#

Therefore, it takes the driver approximately 271 minutes or 4 hours 31 minutes to travel 700 miles

Jun 14, 2018

A little bit more than #4# hours and #30# minutes.

Explanation:

Time is related through distance and speed by:

#t=d/v#

where:

  • #d# is the total distance traveled

  • #v# is the velocity of the object

So, we get:

#t=(700color(red)cancelcolor(black)"mi")/(155.5color(red)cancelcolor(black)"mi""/h")#

#~~4.5 \ "h"#

#~~270 \ "minutes"#

Note that the real answer is a little bit more than that, and my answer will not be applicable in a real racing competition, as every second, or even MILLISECOND counts!