Rates – A comparison of two products to see which is cheapest
Posted: June 11, 2013 Filed under: MTH145, MTH148, Ratio & Proportion, Ratio & Proportion | Tags: Carruthers, comparison, mathcasts, rates Leave a comment
Direct Variation – both methods
Posted: January 29, 2013 Filed under: Application of Skills, MTH145, MTH148, MTH173, Ratio & Proportion, Ratio & Proportion | Tags: direct, mathcast, variation Leave a comment
Given y is directly proportional to x and y46 when x62, find y when x17.
Proportions – Solving for the variable
Posted: January 29, 2013 Filed under: Application of Skills, MTH145, MTH148, MTH173, Ratio & Proportion, Ratio & Proportion | Tags: cross-multiplication, mathcast, proportions, variable Leave a comment
Student solution for solving for x in a proportion by cross-multiplication.
Proportional Reasoning
Posted: January 29, 2013 Filed under: MTH145, MTH148, MTH173, Ratio & Proportion, Ratio & Proportion, Review | Tags: mathcast, Proportional, Reasoning Leave a comment
Proportional Reasoning
Solving for x in a proportion
Posted: January 29, 2013 Filed under: Application of Skills, MTH145, MTH148, MTH173, Ratio & Proportion, Ratio & Proportion | Tags: mathcast Leave a comment
Solving for x in a proportion
Indirect Variation – both methods
Posted: January 29, 2013 Filed under: Application of Skills, MTH145, MTH148, MTH173, Ratio & Proportion, Ratio & Proportion | Tags: indirect variation, mathcast Leave a comment
Given y is indirectly proportional to x and y95 when x54, find y when x17.