These road signs are on Loop 101 just south of Guadalupe Road in Tempe, Arizona.

The road signs say...

+-------------+ +--------------+ +--------------+ | Exits 55A-B | | Exit 55C | | Exit 56 | | US Hwy-60 | | Baseline Rd | | Guadalupe Rd | | Phoenix | | Southern Ave | | 3/4 Mile | | Globe | | 1 3/4 Miles | +--------------+ | 2 3/4 Miles | +--------------+ +-------------+the numbers are: 55 60 (2 3/4) 55 (1 3/4) 56 (3/4) the math is: (2 3/4 - 1 3/4 - 3/4) * (60 - 56) = 55 / 55 observe... left-hand side: 2 3/4 - 1 3/4 = 1 1 - 3/4 = 1/4 60 - 56 = 4 1/4 * 4 = 1 right-hand side: 55 / 55 = 1 more math: (2 3/4 + 1 3/4) - (60 - 56) = sqrt(55 / 55 - 3/4) observe... left-hand side: 2 3/4 + 1 3/4 = 4 1/2 60 - 56 = 4 4 1/2 - 4 = 1/2 right-hand side: 55 / 55 = 1 1 - 3/4 = 1/4 sqrt(1/4) = 1/2 [solve for 'n'] (2 3/4 + 1 3/4) - (n - 56) = sqrt(55 / 55 - 3/4) [solve for 'x'] (2 3/4 + 1 3/x) - (60 - 56) = sqrt(55 / 55 - 3/4)

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 07 September 2007

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+ added "more math" section and "solve for..." exercises
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