Purplemath

Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources also available... Practical algebra lessons that emphasize the practicalities of understanding the questions and intelligently and simply arriving at the answers... Provides worked examples of linear programming word problems. ... That is, the solution is "100 scientific calculators and 170 graphing calculators" ...

4 Education Categories - Purplemath

Algebras (104 other websites)
Offers homework guidelines, links, modules, and a math study skills self-survey.
Graphing Calculators (40 other websites)
Provides worked examples of linear programming word problems.
Scientific Calculators (29 other websites)
...That is, the solution is "100 Scientific Calculators and 170 graphing calculators"...
Study (563 other websites)
Purplemath contains practical algebra lessons demonstrating useful techniques and...