Problema Solution
Mary and sue are both on bikes and leave from point A. Mary travels west at a uniform speed (x mi/hr). Sue travels north at 5 mi/hr faster than Mary. After 2 hours, they are 50 miles apart.
Determine the speed of each girl.
Answer provided by our tutors
after two hours mary travels = 2*x
after two hours sue travels = 2*5 = 10
10^2 + (2x)^2 = 50^2
x = 48.98 mi/hr