PROBLEM OF THE DAY

This problem is a physics problem, for those in an algebra 2 or higher should be able to work this out, with some thought. A person needs to know how deep a well is, but has no way to measure it since its to dark. He drops a large pebble into the well, and hears the sound of the pebble hit the water 5 seconds later. How deep is the well? also, is it possible to determine the speed of the pebble right before it hit the water? Do your best, and please leave some comments.

PROBLEM OF THE DAY day two

Geometry is a very interesting in mathematics, however its a rather tricky subject as well.

Here is a typical geometry word problem that involves triangles.

The firs side of a triangle is two inches less than twice the second side. The third side is ten inches longer than the second side. If the perimeter is 12 feet, find the length of each side.
don't forget to comment if you do find the solution.
good luck.
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Solution

PROBLEM OF THE DAY

For today's problem my focus is algebra. Many of my students were having problems with, you guess it, word problem. Word problems are tricky, and it takes quite a bit of practice to get good at them.

Here is Today's problem, which I will solve and post the following day, followed by a new problem. Not all problems will be algebra, they could be geometry, calculus, physics and even chemistry.

1).. Two airplanes leave Los Angeles, at 10:00 am., one towards Europe at 600 miles per hour, and the other in a direction opposite to the first, at 150 miles per hour. When will they be 900 miles from each other? and how far have they each traveled?


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Solution to yesterday's problem..

this is quite simple if you know how to use the rtd equation.. namely, Distance = rate x time.