[luau] locate apt and synaptic after rpm -i?

[TB]

I'm trying to get fedora going, so I downloaded the
rpm for apt and synaptic and installed them. I think.
I ran rpm -i filename.

Then I tried "locate apt-get" and got nothing. And
"locate synaptic", also nothing. then I tried just
running apt-get, it worked. 

Why is the locate command letting me down? How do I
find out where rpm installed synaptic? 

thanks,

TDB