Math Problem Statement
At a construction site, cement, sand, and gravel are mixed to make concrete. The ratio of cement to sand to gravel is 1 to 2.4 to 3.6. If a 150-lb bag of sand is used, how much cement and gravel must be used?
Solution
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Math Problem Analysis
Mathematical Concepts
Ratios
Proportions
Basic Algebra
Formulas
Ratio = Cement : Sand : Gravel
Proportion calculation: part = ratio × total
Theorems
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Suitable Grade Level
Grades 6-8
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