Formula Solvers

There are many websites that boast formula solvers of some kind, where you can put in your numbers and get an answer. Only College-Cram has formula solvers that show you how to get the answer. I mean, sure having an Continue reading

Using algebra to solve mixture problems

Hi,  I have this problem that I am not able to solve because I do not know anything about mixtures.   A car's radiotor contains 12 L of antifreeze at 25% concentration. How many liters must be drained and then Continue reading

Algebra Homework Help

We get alot of students searching for homework help at our site, that are having trouble with algebra. Whether the textbook is confusing or they just need some extra help, we have a bunch of resources to help students get Continue reading

Two Cars Algebra Problem

Dear Professor Cram: One automobile starts out from a town at 8am and travels at an average speed rate of 35mph. Three hours later a second automobile starts out to overtake the first. If the second automobile travels at an Continue reading

Finding the Slope of a Line

Dear Professor Cram: Find the slope of the line described by the equation: y + x = -3(14 – x/3) KG, US Navy KG, thank you for this algebra question. This is a pretty straight-forward question, so here's how we Continue reading

Expanding a Rational Expression

Dear Professor Cram: I am taking a distance learning college algebra course, so I am left on my own to some extent to learn the material. I'm just beginning to work problems like: (5x²/6y²)³ The book I'm using doesn't give Continue reading

Algebra Word Problem

Dear Professor Cram: 600 children attended summer camp, 58% girls, 42% boys (overall). 25% attended dance camp. If dance camp was exclusively attended by girls, how many girls attended dance camp? The choices are a)150, b)95, c)102, d)118, and e)123. Continue reading