Robert's avg speed = 2640 ft/199 sec = 13.266.. ft/s
Max' speed = 2640/174 = 15.17.. ft/s
13.266../15.17 = .874..
= 87.4%
Max's soapbox racer completed a half-mile course in 3 minutes and 19 seconds. Robert's car completed the same course in 2 minutes and 54 seconds. The average speed of Robert's car was what percent of Max's? Round your answer to the nearest hundredth of a percent.
1 answer