Respuesta :

Finding the unit rate is to work out how many doughnuts baked for every one minute

1 dozen = 12 units
4 dozen = 12 × 4 = 48 units

18 minutes ⇒ 48 doughnuts

Divide 18 minutes by 18 to get 1 minute
Because we divide 18 minutes by 18, we will also divide 48 by 18

18 ÷ 18 ⇒ 48 ÷ 18 
1 minute ⇒ 2.67 doughnuts

The rate of doughnuts production is 2.67 doughnuts for every minute