Three engineers a (CE), an (EE) and a (ME)- each have a consulting firm.

The consulting they do is of a multidisciplinary nature, so they buy a portion of

each other services. For each $1 of consulting the CE does, she buys $.10 of

the EE's services and $.30 of the ME's services. For each $1 of consulting the

EE does, she buys $.20 of the CE's services and #.40 of the ME's services. And

for each of $1 of consulting the ME does, she buys $.30 of the CE services and

#.40 of the EE services. In a certain week the CE receives outside consulting

orders of $500, the EE receives outside consulting order of $700, and the ME

receives outside consulting order of $600. What dollar amount of consulting

does each engineer perform in that week.