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#30461

money

linear equations

systems

hard

120 sec

A school organized a field trip for 60 students. Each student either brought their own lunch or purchased a lunch from the school. The cost of a school lunch was $$4.50$ . The total amount spent by students on school lunches was $$189$ . How many students brought their own lunch?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.