Mathematics, 08.03.2020 17:21, cxm
A 30-meter by 70-meter rectangular garden is surrounded by a walkway with a width of 5 meters. Karen is running one lap around the outer edge of the walkway at a rate of 4 km per hour, while her brother is running 2 laps around the inner edge of the walkway twice faster. If they start running at the same time, how many minutes earlier will Karen's brother finish his run?
Answers: 1
Mathematics, 22.06.2019 05:00, muravyevaarina
If three points are collinear, they are also coplanar
Answers: 1
A 30-meter by 70-meter rectangular garden is surrounded by a walkway with a width of 5 meters. Karen...
Mathematics, 06.05.2020 17:04
Spanish, 06.05.2020 17:04
Spanish, 06.05.2020 17:04