Top definition
A magical formula that will calculate how fast you will drive. Simply put speed limit in for x and solve.
The speed limit in residential areas is 25. Now to apply the x+10 rule, 25+10 is 35. You will drive 35 miles per hour in residential areas.
by JNBa October 08, 2009
Get the mug
Get a x+10 mug for your boyfriend Vivek.
buy the domain for your diy blog