The phrase "activities were coordinated" is correct and usable in written English.
It can be used when describing the organization or management of various tasks or events to ensure they work together effectively.
Example: "The success of the event was largely due to the fact that all activities were coordinated seamlessly among the different teams."
Alternatives: "activities were organized" or "activities were managed".
When Seattle Man went to Washington, his activities were coordinated in large part by a Web site, www.a16.org.
The party also had groups operating among the intelligentsia and urban workers and had administrative and "disorganizing" sections; all its activities were coordinated by a central "basic circle".
The shared workspace provided a location-independent central repository of resources around which group activities were coordinated whereas the laptops provided a focal point for the face-to-face discussion of these resources.
The reconnaissance activities were coordinated by the 1st Field Survey Company, Royal Engineers.
In New Guinea, logistics and construction activities were coordinated by task force engineer staffs.
Many of these activities were coordinated under the Action N Operation of Armia Krajowa's Bureau of Information and Propaganda.
Logistics implies that a number of separate activities are coordinated.
Farming activities are coordinated through the kakuet, although each family also has its own plots.
At a more local level, Moldova is administered by elected town and village councils and mayors; their activities are coordinated by district councils, which also are elected.
The money is intended specifically to pay for the activities of the Iraq Survey Group, made up of teams of troops and experts who are managed by the Pentagon but whose activities are coordinated by David Kay, a former United Nations weapons inspector who reports to the director of central intelligence, George J. Tenet.
This function is exercised in the United States by the Board on Geographic Names and in the United Kingdom by the Permanent Committee on Geographical Names; worldwide these activities are coordinated by the United Nations Conference on the Standardization of Geographical Names.
