A student scored 78 and 92 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz score that would give him an average between 80 and 85, inclusive. (1 point)

Question

A student scored 78 and 92 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz score that would give him an average between 80 and 85, inclusive. (1 point)
78<=x<=92
75<=x<=85***
70<=x<=85
80<=x<=85

Steve · Accepted Answer

80 <= (78+92+x)/3 <= 85 240 <= 170+x <= 255 70 <= x <= 85