It is given that y varies inversely as x varies. if x = 8 and y = 6, what is the value of y when x = 4?

10 points !

answer:

the answer to your question is y = 12

step-by-step explanation:

data

x = 8       y = 6

x = 4       y = ?

they vary inversely

process

1.- use proportions to solve this problem

                              8   6

                                4   y

as they vary inversely, multiply 6 by 8 and the result divide it by 4

                              y = (6 x 8) / 4

simplification

                              y = 48 / 4

result

                              y = 12                                              

7

step-by-step explanation:

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.