How many solutions exist for this set of equation ?

ab=1 , bc=2 , ca=8

A . 1

B . 2

C. 3

D . 6

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- Dec 10th 2009, 07:54 AMhookesolutions
How many solutions exist for this set of equation ?

ab=1 , bc=2 , ca=8

A . 1

B . 2

C. 3

D . 6

- Dec 10th 2009, 10:19 AMstapel
What have you tried so far? You've done something like solve the first and third equations for "a=", expressed "c" in terms of "b", and then solved the second equation for "c=", and... then what?

Please be complete. Thank you! (Wink) - Dec 10th 2009, 10:57 AMRaoh