Homework Help: Math

Posted by Diane on Sunday, September 5, 2010 at 11:00pm.

A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?

Math - Ms. Sue, Sunday, September 5, 2010 at 11:05pm
Use a proportion, cross multiply, and solve for x.

3,000/90 = 3,500/x
3,000x = 315,000
x = 315,000 / 3,000
x = ?

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