6. Darcy jogs 3 km in 20 min.
a) How far can she jog in 1 h?
b) How far can she jog in 2 h?
c) What assumption are you making to answer parts a) and b)?

Step-by-step explanation:

a) 3km=20 minutes

times both side by 3 as 20x3 is 60mins equal 1 hour

so 3kmx3 is 9km

b) 3km is 20 mins

times both side by 6 as 20x6 is 120 mins which is equivalent to 2 hours

therefore, 3kmx6 is 18km

c) the assumption is that the longer you run means that youll jog more further so more fitness

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.