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September 20, 2014

September 20, 2014

Posted by **theresa** on Friday, April 13, 2012 at 11:30pm.

- math -
**Reiny**, Friday, April 13, 2012 at 11:42pm3 cm ---> 20 km

1 cm ---> 20/3 km

10.8 cm --- (20/3)(10.8) km = .....

- math -
**theresa**, Friday, April 13, 2012 at 11:54pmi dont understand your answer to my ?

- math -
**Reiny**, Saturday, April 14, 2012 at 12:01ammy last line ....

10.8 cm = (20/3)(10.8) = 72 km

or

set up a ratio:

L/10.8 = 20/3

L = 10.8(20/3) = 72

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