Sunday

April 20, 2014

April 20, 2014

Posted by **kelvyn** on Saturday, October 1, 2011 at 12:59pm.

- geometry -
**Steve**, Sunday, October 2, 2011 at 11:33pmyou have

4x = ab

5x = bc

16 = ab

5ab = 4bc

5(16) = 4bc

20 = bc

so, x=4

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