## Weekend Challenge – Hurricane Irene edition

If you’re on the East Coast, I hope that you and yours are able to weather the storm OK. I’m not sure whether I’ll have power or not on Monday, but I’ll try to get the solution posted then if possible. This week’s prize will again be access to the Math Guide Beta, which is (more…)

## Weekend Challenge – Bloggergate edition

Very sorry for the disappearing and reappearing blog the past 24 hours or so. Blogger has had some difficulties, but I’ve used it for the better part of a decade without incident, so this one won’t send me running for the hills. I’m assured that the super long post I wrote and posted yesterday about (more…)

## Solve directly for expressions!

If I asked told you it was my birthday and I wanted a cake, what would you do? You’ve got two choices: buy a bunch of ingredients and start baking, or go to a different aisle in the grocery store and just buy the cake. Baking the cake yourself is not only more time consuming (more…)

## Can you solve this tough math question?

For real numbers a, b, and c, ab = 1.5, bc = 6, and ac = 25. So abc =(A) 9 (B) 12 (C) 15 (D) 100 (E) 225 Answer and explanation below the fold… If I told you it was my birthday and I wanted a cake, and you liked me enough to provide (more…)