Perry surveyed 60 students at her school and found that 0.45 of the students she surveyed said their favorite class is math. Another 35% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?

1. Perry surveyed 60 students at her school.

=> 0.45 of the students said that their favorite subject is math

=> 0.45 x 100 = 45%

Thus, 45 % of 60:

=> 60 *.45 = 27

35% of the student said their favorite is science:

=> 35% / 100 = 0.35

=> 35% 0f 60 equals:

=> 60 *.35 = 21

Thus, 27 - 21 = 6 of the student said that they love math over science.