These people have hit on a formula which seems to work.

My third book club, though, has hit on a winning formula.

Republican governors met several times among themselves at this conference to try to agree on a formula.

The amount returned is based on a formula that takes into account the districts' financial resources.

The word list is based on a formula for calculating frequency of use.

They had lost touch with their customers by relying on a formula that was at least 25 years old.

She doesn't rely on standard formulas to structure her pieces.

The immediate task is to agree on a formula for withdrawal.

Such a system would be relatively simple to introduce on a seat/flight formula.

The breakdown of tenants is based on a rather complex formula.