The equation 5+5+5=550 is a riddle where the directions are to make the equation true by adding only one single line. The answer is to change the equation from 5+5+5=550 to 545+5=550 or 5+545=550.
This is a very simple riddle because the plus sign just has to be reworked into a 4 to make the solution work. It can fool many people though because the equation at first just looks erroneous.
A similar riddle could be 3+3+7=350. Adding a straight line to one of the plus signs will change it to a four, fixing the equation. These types of brain teasers are common in logic books and collections of mind exercises.
You are to use 1 straight line to change this equation to make it true. Instead of
http://www.chacha.com/question/whatis5%2B5%2B5%3...

5 / 550 = 0.00909.
http://wiki.answers.com/Q/What_is_5_divided_by_550

1. Download custom firmware 5.50 Gen D3. 2. Connect the PSP to the computer that you downloaded the custom firmware installation file to. Alternatively, insert the PSP memory card
http://www.ehow.com/how_8486477_installcustomfir...

One kilometer is equal to .62137 miles. Five kilometers would be equal to 3.10685 miles. There are 5,280 feet in one mile, so there are 16,404.168 feet in five kilometers.
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