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September 18, 2014

September 18, 2014

Posted by **zainab** on Wednesday, January 9, 2013 at 8:38am.

- maths -
**Reiny**, Wednesday, January 9, 2013 at 9:03amuse a straightforward proportion

2 cm/50 km = 8.5 cm / x km

2x = 42.5

x = 21.25

8.5 cm on the map represent 21.25 km

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