can someone help  me plz

I have simple mining and 3 rigs all using same email address

using

1. claymores 9.4 eth on simple mining
2. 3 amd rigs rx470 modded bioses
3. Mining pool ethermine.org

on simple mining I can see all 3 rigs hashing correctly - but on ethermine.org is showing less hash rate and only 2 workers instead of 3 workers is this normal that the ethermine.org web interface shows less hasrate and incorrect workers

also can some maybe type command line I should use for 3 rigs connected

Thank you

links below pictures

https://postimg.org/image/5wthqecct/

https://postimg.org/image/snxnef2tt/