Mira can run 18 miles three hours and she can buy 18 miles in two hours on my bike for three hours and then ran for one hour and 30 minutes what is her average speed.

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm. dist(80,475,33,1) =norm. inv(0.80,475,33) =norm. s.inv((80-475)/33)?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827