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March 6, 2015

March 6, 2015

Posted by **Serena** on Monday, June 15, 2009 at 1:15pm.

- Mathematics -
**Reiny**, Monday, June 15, 2009 at 1:43pmlet's stick with ratios

4.5 km = 450000 cm

let x be the number of cm on the map

1/50000 = x/450000

x = 9 cm

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