Math Problem Statement
Roy,Sally, and Jeff drive a total of 50 mi to work each day. Sally drives twice as far as Roy, and Jeff drives 10 miles farther than Sally. Use a system of three equations in three unknowns to find how far each person drives each day.
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Systems of Equations
Linear Equations
Formulas
R + S + J = 50
S = 2R
J = S + 10
Theorems
Substitution method in solving systems of equations
Suitable Grade Level
Grades 8-10
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