an unknown quantity in a sentence

Examples

1. And the Florida court was an unknown quantity to most Americans until last week.
2. And almost every person around him is an unknown quantity.
3. They don't have an exact value now because no one knows an unknown quantity.
4. This game is an unknown quantity, but I think we can approach 20, 000.
5. I'm still a little bit of an unknown quantity.
6. "Cold Mountain " was issued with perfunctory fanfare _ an unknown quantity and unsuspected quality.
7. Playoff-wise, he remains a bit of an unknown quantity.
8. To Pacific Lumber employees, Hurwitz is an unknown quantity.
9. MindSpring is pretty much an unknown quantity in California.
10. Bloomberg is still an unknown quantity for New Yorkers.