Question

Anna surveyed 50 students at her school and found that 0.72 of the students she surveyed said their favorite class is math. Another 12% of the students she surveyed reported that their favorite class is science. How many more students in the survey prefer math over science?

6
30
36
42

Answer 1

I say 6

Answer 2

but why?

Answer 3

@jim_thompson5910

Answer 4

0.72 is pretty much 72%, so multiply .72 and 50

Answer 5

Take 72% of 50. Call this result x

Take 12% of 50. Call this result y

Subtract: x - y = ??

Answer 6

then multiply .12 and 50

Answer 7

what do you get?

Answer 8

600

Answer 9

try again, .72*50 and .12*50

Answer 10

36 - 6 = 30

Answer 11

ohh my bad

Answer 12

Yes!! you are correct

Answer 13

correct @beckyg111

@babykel you forgot the decimal

Answer 14

oh sorry >_<