Question

A student scored 83 and 91 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 85 and 90, inclusive.

Answer 1

aaa so this was confusing to write because i skipped steps but definitely ask me if you don't see how i got to wherever

the compound inequality was 85 must be greater than or equal to (83 + 91 + t)/3 must be less than or equal to 90, t being the third test score