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Nurses need to calculate the drip rate, D, in drops per minute for infusions.

They use the formula D = \(\frac{dv}{60n}\) ,where d is the drop factor measured in drops per millilitre (mL),

v is the volume in mL of the infusion, and

n is the number of hours the infusion is required to run.

A nurse wants to double the time an infusion runs for.

Describe precisely how D changes if n is doubled but d and v do not change.

### Select one of the following: