Mrs. Miller teaches 3 times as many students 1st hour as she does 3rd hour. her second hour class has twice as many as her 3rd hour class. if she has a total of 72 people in her 3 morning classes, how many does she have in each class?
Mrs. Miller teaches 3 times as many students 1st hour as she does 3rd hour. her second hour class has twice as many as her 3rd hour class. if she has a total of 72 people in her 3 morning classes, how many does she have in each class?
Let the number of students in her 3rd class =S
Her 2nd class student numbers =2S
Her 1st class student numbers =3S
S + 2S + 3S =72
6S = 72
S =72/6
S=12 Number of students in her 3rd class
2 x 12 =24 Number of students in her 2nd class
3 x 12 =36 Number of students in her 1st class.
