Math Problem Statement
ujian mata pelajaran matematika dari 25 sowa mengikuti deret aritmatika dengan nilai tertinggi 98 dan nilai rata-rata 69. Maka berapakah nilai terendahnya?
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Sequences
Averages
Formulas
Arithmetic Sequence Average Formula: (U1 + Un) / 2 = Average
Solving for the First Term: U1 = 2 * Average - Un
Theorems
Arithmetic Sequence Mean Theorem: The average of the first and last term of an arithmetic sequence is the mean of the sequence.
Suitable Grade Level
Grades 9-10
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