Math126
posted by Kelli .
A Community College has 3,000 student 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 students to instructor ratio?

Cross multiply and solve for x.
3,000/90 = 3,500/x
Subtract 90 from your answer to find the number of instructors the college needs to hire.