The phrase "a useful mix" is correct and usable in written English.
You can use it to describe a combination of elements that are beneficial or advantageous in a particular context.
Example: "The workshop provided a useful mix of theory and practical exercises to enhance our learning experience."
Alternatives: "a beneficial combination" or "an effective blend".
Now it's been upsized for the iPad too, with a useful mix of reminders, contextual details for your appointments, and a simple system for entering new ones.
Gene Editing and Intellectual Property: A Useful Mix? The Health Policy and Bioethics Consortia is a monthly series that convenes two international experts from different fields or vantage points to discuss how biomedical innovation and health care delivery are affected by various ethical norms, laws, and regulations.
They were from different backgrounds and had varying levels of commissioning experience, and they were allocated to different groups, giving a useful mix of experiences to draw on.
BEST: "Favorite articles" section, which offers an interesting and useful mix of magazine and Web site articles.
This evidently isn't a useful subtractive mixing system.
But Greenway guided them to a useful total, mixing sweeps with powerful drives down the ground and launching the only six of the innings over long-off.
Nevertheless it's a useful way of mixing old and new photographers, and it shows, to some degree, how the manner of taking pictures has changed.
In summary, capacitance probe proved to be a useful method in mixing or segregation of binary mixtures fluidization.
A useful method is mixing fluoride surfactant into PEDOT PSS solution to reduce the contact angle [25].
We draw upon a range of literatures to re-conceptualise the basic building blocks of innovation policy studies in order to arrive at a useful definition of 'policy mix' tensions and interactions of different kinds across a series of dimensions.
Data gathering exercises like this one from 451 Research do serve a useful purpose, contributing a mix of facts, statistics, means, medians, modes, suppositions, theories, informed (and uninformed) opinions, and conjectures to the difficult process of selecting the enabling technologies upon which a business will grow and — hopefully — succeed.
