The phrase "a mixture of age" is correct and usable in written English.
It can be used to describe a combination of individuals or elements of different ages in a particular context, such as a group or setting.
Example: "The community center hosts a variety of activities that attract a mixture of age, from toddlers to seniors."
Alternatives: "a blend of ages" or "a range of ages".
Such projects are an important component of the school's life and often involve a mixture of age groups.
"This is more of a mixture of age and youth, and the Yankees do have prospects coming, so it's hard to see this as a Chicago Bulls' situation, a last hurrah," Cone said.
18 Five of the observational studies focused solely on children, 21 23 25 29 while the remainder looked at adults or a mixture of age groups.
He inherited a somewhat motley crew, being a mixture of aging ex-Marxists and young tyros.
There was quite a mixture of ages on your ultra-marathon – were you very aware of your own age?
Studies of the stars nearest the Sun indicate a mixture of ages with a considerable number of stars of great age on the order of 109 years.
On the other is a mixture of ages and backgrounds: a Thai woman, a primary school teacher, a Somalian refugee, a posh-boy chef, a blind Scot, an Anglo-American gang member turned community worker, and an adult couple into bodybuilding, health and safety, and each other.
They solicited submissions from across the United States, mainly through Facebook and Twitter, winnowing down a couple of hundred to a collection that represents women with origins in East Africa and across the Middle East to Pakistan, as well as a mixture of ages, professions and sexual orientations.
These 31 horses were deliberately a mixture of ages, breeds and body condition scores.
Although this might be a disadvantage in contrast to purified single AGE compounds like Nepsilon- carboxy-methyl-lysine (CML) from the biochemical view, this model employing a mixture of AGEs is much closer to pathophysiologial conditions found in vivo and observed in diabetes mellitus.
The pattern of avoidance or delay due to cost for those aged 30 years and over indicates a mixture of both age effects and period effects.
