Aclass student council election was held on monday and 15 of the 20 students decided to vote. on tuesday, another election was held, but only 16 students were in the class that day. use the ratio of students who voted in monday's election to the total number of students in class on monday to predict the number of students who voted in tuesday's election.
We know that 15/20 students voted in the StuCo election on the first go around.
Using this ratio for 16 student is as simple as multiplying 15/20 by 16
answer is 12