Un tren recorre 1642 kl en un tiempo de 8,5 hs ¿ a qué velocidad viaja en km/seg​

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2