Ask Question
23 October, 06:55

A student scored 98 and 87 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 90 and 95 inclusive

+4
Answers (2)
  1. 23 October, 08:06
    0
    90≤ (98+87+s) / 3≤95 multiply each expression by 3

    270≤98+87+s≤285 combine like terms in center expression

    270≤185+s≤285 subtract 185 from each expression

    85≤s≤100

    So the student can score from 85 through 100 to average from 90 to 95
  2. 23 October, 08:24
    0
    90≤ (98+87+s) / 3≤95 multiply each expression by 3

    270≤98+87+s≤285 combine like terms in center expression

    270≤185+s≤285 subtract 185 from each expression

    85≤s≤100

    So the student can score from 85 through 100 to average from 90 to 95
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A student scored 98 and 87 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz score that ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers