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7th Grade Math
2. 7.RP.A.2
2.1 Applications of ratios
Applications of ratios
What You'll Learn
Apply ratios to solve real-world problems involving perimeter, side length, and volume
Set up proportions using ratio relationships and solve for unknown values
Use cross-multiplication to find missing quantities in ratio problems
Convert between different units while maintaining ratio relationships
Recognize equivalent ratios and scale them up or down by multiplying or dividing
What You'll Practice
1
Finding perimeter or side length of squares using given ratios
2
Calculating volume of cubes with unit conversions
3
Solving allowance and money problems with multiple ratio relationships
4
Cross-multiplying to solve for unknown values in proportions
Why This Matters
Ratios appear everywhere in daily lifefrom recipes and maps to budgets and construction. Mastering ratio applications helps you solve practical problems like calculating dimensions, converting measurements, and managing money, while building critical thinking skills you'll use in algebra, geometry, and beyond.
This Unit Includes
7 Video lessons
Skills
Ratios
Proportions
Cross-Multiplication
Unit Conversion
Word Problems
Equivalent Ratios
Problem Solving
IL Curriculum Aligned