trip requires 2 instructors for every 5 students. how many instructors are needed for 32 students

a school field trip requires 2 instructors for every 5 students. how many instructors will be needed for 32 kids? round to the nearest whole number.
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2 Answers

2 per 5=40%

40% av 32=0.4*32=12.8

rounded=13
by
5..divide 2 into 32.... will be extra 2 students but instructors only need for every 5.....
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