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-4
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avatar+416 

Suppose x is directly proportional to y, but inversely proportional to z. If x=3 when y=6 and z=4, then what is z when y=3?

 Mar 31, 2020
 #1
avatar+111321 
+1

Not enough info here....to see why

 

x  = k * y  / z

 

3 =  k * (6)  / 4

 

12  =  6k

 

2  = k

 

 

 

So  we  know  that

 

x  =   2 * 3  /   z

 

x  = 6 / z

 

But  we need  to also know   the value  of  x   to find  z

 

 

 

 

cool cool cool

 Mar 31, 2020
 #2
avatar+416 
+1

Thank you! Its okay I got 8 though and it was right?

 Mar 31, 2020
 #3
avatar+1956 
+2

I think so... CPhill beat me to it :(

 Mar 31, 2020
 #4
avatar+416 
0

Nice try though cal!

 Mar 31, 2020
 #5
avatar+1956 
+1

Hehe thanks :D

CalTheGreat  Mar 31, 2020

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