Problema Solution
On the day of a field trip, Mrs. Sawyer put 1/2 of her students on the bus, 1/5 of her students in the principal's car and the remaining 9 in her van. How many students does she have in her class?
Answer provided by our tutors
let x = the number of students in the class
(1/2)x + (1/5)x + 9 = x
by solving we find
x = 30 students
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there are 30 students in Mrs. Sawyer's class.