Math Problem Statement
A man invested Php100, 000. He put part of it in the bank at 5% interest. On the other hand, he invested the remainder in bonds with a 9% yearly return. How much did he put in the bank if his yearly income from the two investments was Php7, 400
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Interest Calculation
Formulas
Total Interest = 0.05 * x + 0.09 * (100,000 - x)
Solve for x in a linear equation: ax + b = c
Theorems
Linear Equation Theorem
Suitable Grade Level
Grades 8-10
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