asia5291
03.08.2019 •
Mathematics
18. a student scored 78 and 95 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 90, inclusive. (1 point)67 ≤ x ≤ 9778 ≤ x ≤ 9580 ≤ x ≤ 9086 ≤ x ≤ 87
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Ответ:
80:
80 = (78 + 95 + x)/3
The value of x from the equation is equal to 67.
90:
90 = (78 + 95 + x) / 3
The value of x from the equation is equal to 97.
Thus, the score should be 67 ≤ x ≤ 97.
The answer is the first choice.
Ответ:
Incomplete
Step-by-step explanation:
Cost of one pretzel not stated