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2 votes
The second doughnut glazing machine can glare 78 dozen doughnuts in

2 hours
Based on this rate, what is the total number of hours it will take the second
machine tolar 135 doren doughnuts Show or explain how you got you
answer

1 Answer

4 votes

Answer:

t = 3.46 hours, or 3 hours 28 minutes

Explanation:

78 dozen donuts in 2 hours immediately reduces to 39 dozen/hour.

Donuts produced as a function of time: D(t), where t is the number of hours the macine runs.

Set D(t) = 135 dozen = (39 dozen/hr)t.

Solving this equation for t, we get:

t = 135/39 hours, or t = 3.46 hours, or 3 hours 28 minutes

User Xiawei Zhang
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