Math Problem Statement

長さの差が9cmの棒A,Bがあります。この2つを池の中にいれるとAは3分の2、Bは6分の5池に入った。池の深さは何cmですか?

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Proportions
Linear Equations

Formulas

B - A = 9
d = (2/3)A
d = (5/6)B
(2/3)A = (5/6)B

Theorems

Proportion and Ratio Theorem

Suitable Grade Level

Grades 6-8