Math Problem Statement
家から図書館に向かって出発します。時速15キロで進むと会館時刻の15分前に到着し、時速8キロで進むと会館時刻の20分前に到着します。家から図書館までの道のりは何キロですか。
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Distance-Speed-Time Relationship
Linear Equations
Formulas
Distance = Speed × Time
d/8 - d/15 = 1/12
Theorems
Linear equations in one variable
Suitable Grade Level
Grades 7-9
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