## Thursday, May 21, 2009

### Real Life Math (Fenced in, Part 2)

Remember the chicken wire issue from a couple posts ago? Here's a word problem:

MamaTea needs 75 feet of chicken wire for her bottom garden, so as to deter the geese from sneaking in. It needs to be at least 14 inches high so it can be attached to the first rail of the fence. And it needs to not take every last bit of her pocketbook, since groceries are always nice to have before the garden starts earning its keep.

In the absence of free/reuseable chicken wire, MamaTea finds the store that sells it cheapest. 24 inch tall x 25 feet long sections for \$14.99. Iggy and Ookster point out the 36 inch tall x 50 foot sections that are \$24.99.

Here is the question. How does MamaTea get more than 75 feet of fencing for \$25?

Give up?

You buy the 36 inch tall x 50 foot section. You cut it in half at 25 feet, and you cut both 25 feet sections in half the long way (at 18 inches tall)...as we are demonstrating in the picture above. And there you have it: 100 feet of 18 inch high fencing for \$25. Thanks to Dad for assisting me (who happened to walk through the yard at the wrong time) with the tangly mess.

And there you have it. Another example of real life math :) Hubster says the fence looks even more redneck now. Aww...ain't that sweet?