The Indianapolis 500 is one of the most exciting events in sports. Each spring, 33 drivers compete in the 500-mile race, sometimes hitting speeds of more than 220 miles an hour. The general formula for computing distance is rate (or speed) multiplied by time, given a steady average speed. The formula may be written d = rt. Answer today's project questions on speed, distance, and time.
The driver's average speed to complete all 8 laps is ______ miles per hour. Round to the nearest tenth of a mile per hour.
if the race is 8 laps and the total miles is 500, that means that each lap represents 62.5 miles. if the driver does the first 3 laps at 185 miles per hour, we use d = r*t. we have the equation:
3*d/(185)
next part
5*d/(200) add together
3d/185 + 5d/200 = t
2. we need to use percentages.
the percent the driver drove 185 miles per hour is 3/8. the percent the driver drove 200 miles per hour is 5/8
