How do i factor 20k + 15 and what is the final answer

5(4k + 3)

Step-by-step explanation:

What is the common factor of 20 and 15?

It is 5.

So you can take the 5 out of both of them and divide both of them like

5 times 4 and 5 times 3

You now get rid of the 5

5(4+3)

BUT WAIT

there was a k in 20k.

So you

put the k next to the 4.

So you get

5(4k + 3)

done

answer: 12

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.