There are 145 children taking swimming lessons at the pool. if 10 children will be assigned to each instructor, how many instructors need to be hired?

All you do is divide 145 by 10 which equals 14.5. This means you will need 15 instructors so that everyone gets an instructor

All we need to do is divide 145 by 10 and you get your answer :D

145 / 10 = 14.5

Well, we cant cut a person in half so we need to round to the nearest whole number. Since it's 5 we round up, so 15 instructors need to be hired.