Posted by **JOHN** on Thursday, August 27, 2009 at 11:54pm.

ASSUME THAT S/A= 4.5, D/A= 4.5, N/E= .80 AND A=D+E SLOVE FOR N/S.

- ALGERA -
**bobpursley**, Friday, August 28, 2009 at 12:06am
Well, from the first two, D=S

and D=4.5A

From the fourth,

A=D+E=4.5A+E

or E=-3.5A

But N=.8E, so N=.8*(-3.5A)

solve for N/S is the same as N/D

N/s=N/D=.8*(-3.5A)/4.5A

and surely you can finish it.

- ALGERA -
**JOHN**, Friday, August 28, 2009 at 12:38am
is -.62 correct

- ALGERA -
**bobpursley**, Friday, August 28, 2009 at 12:40am
It is if you checked my work and found no errors.

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