Which ratios are equivalent to the given ratio? 15 to 30 a. 1/2 b.7: 15 c. 6/3 d. 4 to 2 e. 10: 20

a. 1/2

e. 10:20

Step-by-step explanation:

15 to 30 as a fraction is 15/30, which can be reduced to 1/2. To find equivalent ratios, simply find which answers are equal to 1/2.

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   download the app called socratic on your phoner:

step-by-step explanation: