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 answer is helpful, but I'm going to need to know how to solve the formula when I take the test... I guess it's like the adage: "Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime."

Eat up!

College-Cram offers e-learning resources in the following Humanities subjects. (Click the subject to access those resources.)

Mythology: We are dedicated to learning more about Mythology around the world from Greek, Roman, American Indian, to the Aborigines in Australia. Join in and create, connect, and learn with other learners who are passionate about Mythology.

US Government: The US Government draws from its past roots in Europeanand western societies, and is ripe for detailed study. Use our collection of Cramlets™ (learning modules), study sheets, tutorials, and articles to help you learn its structure and sources.

World Studies: The world is a big place, filled with a variety of cultures and countries. Use our collection of Cramlets™ (learning modules), study sheets, tutorials, and articles toshed light on other peoples with which you may not yet be familiar.

Miscellaneous:  Various students contributed these resources in a variety of formats and subjects, some college-related and others (like baking cheesecakes) not so much. Enjoy!

College-Cram offers e-learning resources in the following foreign language subjects. (Click the subject to access those resources.)

French: Bonjour, and welcome to our French Language resources featuring French Cramlets™ (learning modules), study sheets, tutorials, and articles all designed to help you absorb this language.

German: Guten Tag, and welcome to our German Language resource collection featuring German Cramlets™ (learning modules), study sheets, tutorials, and articles all designed to help you learn German more effectively.

Spanish:  Buenas tardes, and welcome to our Spanish Language resource collection featuring Spanish Cramlets™ (learning modules), study sheets, tutorials, and articles all designed to help you learn the colorful Spanish language.

College-Cram offers e-learning resources in the following science subjects. (Click the subject to access those resources.)

Astronomy:  Venus, Saturn, photosphere, Sea of Crises, Nebulae, Scorpius, and Constellations are just a few of the things you will find in this resource collection. Inside this community you will find Astronomy Cramlets™ (learning modules), study sheets, tutorials, and articles to help reach for the stars in astronomy.

Biology: Check out what we have been incubating here in the biology community. Do you need help with cells, organisms, or anatomy? If so, then you are in the right place to learn from our Biology Cramlets™ (learning modules), study sheets, tutorials, and articles. If you think you need more than osmosis to learn join up and connect with others who are passionate about the growth of biology.

Chemistry: Welcome to the Chemistry community or "Lab." We are all about mixing it up around here from H₂0 to Carbon Monoxide. Check out the interactive periodic table or molar mass formula solver or other Chemistry Cramlets™ (learning modules), study sheets, tutorials, and articles to help you learn chemistry and make a better grade.

Physics:  If you need the force to help you learn about kinetic energy, magnitude, or Newton's laws then you are in the right place. Accelerate your learning with our Physics Cramlets™ (learning modules), study sheets, tutorials, and articles designed to help you leverage a better grade in physics.

College-Cram offers e-learning resources in the following math subjects. (Click the subject to access those resources.)

College Algebra: A dedicated community of learners for Algebra and College Algebra, we love to share that knowledge, create learning opportunities and connect with one another about Algebra. Do you need help? Check out our Cramlets, Study Sheets, and Tutorials.

Business Math:  Let's get down to business and do the math in the Business Math Community. When you think your grade might be "Marked Down" then check out our resource of Cramlets™ (learning modules), study sheets, tutorials, and articles. We are here to help one another and promote the skills needed to new entrepreneurs of tomorrow.

Pre-Calculus: We are all about the pre-calculus here. If you need help join up and look through our interactive Pre-Calculus Cramlets™ (learning modules), study sheets, tutorials and articles.

Trigonometry: We are all about the angles here - hypotenuse, right angle, and triangle! Welcome to the Trigonometry community where you can find helpful learning modules (Cramlets™), study sheets, tutorials, and helpful articles. Take the time to connect with other learners, the content, and with learning about trigonometry.

College-Cram offers e-learning resources in the following business subjects. (Click the subject to access those resources.)

Accounting: It's time to learn how to account for all that we can learn in the Accounting Community. If the caffeine is starting to wear off and you need a little credit on the right to offset the debit on the left in your studying then you have found the place. Check out our Accounting Cramlets™ (learning modules), study sheets, tutorials, formula solvers, and articles to adjust your accounting grade and help you learn accounting terms.

Economics: So you are demanding some help with economics, well we are ready to supply what you need in the Economics Community. Check out our Economics Cramlets™ (learning modules), study sheets, tutorials, formula solvers, and articles to help equalize a profitable grade.

Finance: It is time to finance another round of schooling for all of us. If you are wanting to understand the financial statements better or just needing to understand EBITDA we have the right ratio of Finance Cramlets™ (Learning Modules), study sheets, tutorials, and articles to find a balance with your grade.

Recently, two of the top three college textbook publishers announced plans to get into the textbook rental business. On its face this seems like a good deal for college students, but the real question is whether this heralds a beginning of cheaper textbook prices or is just another pricing stunt from an industry famous for stunting.

For years, the college textbook publisher business model has been consistent. Most of the revenues the publisher gets for a new edition comes in the first semester. Over the remaining life of that edition, competition and used books chew up an increasing amount of the market share and reduce the publisher revenues to a trickle. This is why publishers charge high prices for the books so they can be sure to recoup their expenses. From a student’s perspective, the average cost of that textbook is similar — almost all copies that first semester cost full retail price, with cheaper used books making up more of the volume in subsequent semesters. Used book dealers make their money after the first semester assuming they bet correctly on the books still being in demand. (Meaning, they buy back books they think will be in need again, and decline to buy back books that won't be used and longer.)

(See how the money gets divided in the secret behind textbook costs.)

In a textbook rental scenario, things change for everyone:

• Publishers get less money that first semester (reflecting the 40-70% of retail price floated by Cengage), but continue to get similar revenue levels in subsequent semesters because there are few if any used books. Their revenue curve, which before was extremely front-loaded, is now more level. In fact, the ongoing revenue potential could in some cases extend the hyper-accelerated revision cycle leaving the same edition in play for longer (further raising the profitability of that edition.) Sounds like a win for the publisher.
• Students get to spend less that first semester for their textbook, but in subsequent semesters can end up paying more since there are no more cheap used books. (This is especially true in cases where the student wants to keep the textbook, since in the absence of used books they are forced to purchase at full price.) Sounds like a loss for the student unless they’re in that first semester.
• Used book dealers really get screwed on this one, since their supply and market both dry up entirely. A resounding LOSS for them.

For years the used book market has been kicking the publishers' asses, revenue-wise. For a while they had some success with bundling the textbook with workbooks or CDs/DVDs, knowing that bookstores wouldn’t buy those back and forcing them to replenish their stocks from the publisher (at full price). Now, with rentals, it appears that they’ve hit on another tactic that could solve their problem.

How about the college student’s problem of higher textbook costs, though? It doesn’t seem like their expenses are getting a reduction… #FAIL

 

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 replaced by pure antifreeze to bring the concentration to 50%?

 The answer is 4L but the book did not provide workings. Please show me the workings.

Thank you.

If you aren't into college yet and have time to plan ahead, here is some good information on the whole FAFSA process and how to minimize your EFC.

With thanks from the New Scientist website, here are ten great space stories of the past year:

1. Spooky deep space images recall Halloween at its finest.
2. Speculation that the "big bang" was really a "big bounce"
3. Life found in extreme conditions on Earth suggests where to look elsewhere in the Solar System
4. Phoenix lander finds water ice on Mars
5. New insights into what makes a planet habitable expands our search for extraterrestrial life
6. Scientists spot asteroid on collision course with Earth
7. Largest black hole discovered (so far)
8. Did Earth have other moons?
9. What new particle did physicists discover at the Tevatron?
10. What's so special about the Earth's cosmic neighborhood?

Enjoy!