You decided to invest $10,000 that you won in a contest. You found three accounts to divide your money into. One account pays 5% interest, the other pays 7% interest and the last account pays 10%. You can only put half the amount in the 10% account than you put in the 5% account. At the end of the year you earned $670 in interest. How much did you invest in each account? Write your answer as an ordered triple in the correct order (amount in 5%, 7% and 10%)

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.

answer:

c) the x-coordinate of the center of the circle increases by 3