ROUNDUP Satellite Business Systems Is Sold by IBM  
a MCI Communications Corp. and International Business Machines Corp. yesterday signed a definitive agreement for MCI to purchase virtually all assets and operations of Satellite Business Systems, the IBM-owned communications company, in exchange for about 16.6 percent of MCI stock, or 46.7 million shares.	Û¢</br></br>IBM previously announced it would invest an additional $400 million in MCI. That investment will be made between Sept. 1, 1986, and Dec. 31, 1988, spokesmen for the companies said.</br></br>Completion of the transaction is subject to approval by both the Federal Communications Commission and the Justice Department.</br></br>ÐÊ	Beatrice Cos. Inc. is urging shareholders not to act on a $4.9 billion leveraged-buyout offer from the New York investment company Kohlberg, Kravis, Roberts & Co. until directors can consider it. Officials at Beatrice, one of the worldÛªs largest food and consumer-products companies, said in a statement that consideration will follow ÛÏappropriate analysis by the companyÛªs management and advisers.Û</br></br>The Beatrice board is expected to meet Sunday to review the takeover offer, according to Wall Street sources quoted by Reuters, which also reported that at least two of BeatriceÛªs six inside directors were studying the possibility of making a management-led buyout offer for the company. The two directors, David Lipson and Richard Pigott, both executive vice presidents, have retained the firm of Goldman Sachs and Co. to advise them, the sources said.