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.