40% of a nurse’s time is spent dispensing medicine to patients. if 16 hours per week is spent dispending medicine, how many hours does the nurse work?

Write the given information as an equation.

... 0.40 × (work week) = 16 hours

Divide by the factor you don't want (0.40).

... (work week) = (16/0.40) hours

... work week = 40 hours

40% means 40/100 (forty hundredths) or 0.40 (forty hundredths). (The % symbol is a shorthand way to write /100.)

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