SOLUTION: if x/3=y/5=z/7 then (z2-x2+y2)/2y2=

Algebra.Com
Question 761562: if x/3=y/5=z/7 then (z2-x2+y2)/2y2=
Answer by ramkikk66(644)   (Show Source): You can put this solution on YOUR website!
I think you are asking for the value of the expression

Given that x/3=y/5=z/7
First, we express x and z in terms of y
Therefore
Therefore
Now in the given expression, substitute for x and z in terms of y

=

=

=

=


:)

RELATED QUESTIONS

If x+y+z=12,x2+y2+z2=64,find... (answered by ikleyn)
The value of (x/y – y/x) (y/z – z/y) (z/x – x/z)... (answered by dkppathak,MathLover1)
	        1	1       1
Show that       x	y       z      = (y - x)(z-x)(z-y)
	         (answered by Edwin McCravy)

I am having trouble getting started on these problems. Can someone please help?
Thank... (answered by jim_thompson5910)

x/4 =6/5 then... (answered by Fombitz)

z is jointly proportional to x2 and y2.  If z = 422 when x = 6 and  y = 7, find z when x... (answered by rothauserc)

I really need help can somebody polease help me?
1.	Determine whether the following... (answered by stanbon)

1.	Determine whether the following equations have a solution or not? Justify your answer.  (answered by solver91311)

y = x+7 , x2 + y2... (answered by Alan3354)