Erica is going to make chili for a football party. It will take 39 minutes to prepare all the ingredients and assemble them in the pot. Then, the chili will need to simmer for 1 hour and 23 minutes. What is the latest time Erica can start preparing the ingredients if the chili needs to be ready at 2:39 P.M.?
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Answer:
To determine the latest time Erica can start preparing the ingredients, we need to consider the total time required for both the preparation and simmering of the chili.
The preparation time is 39 minutes, and the simmering time is 1 hour and 23 minutes, which is equivalent to 60 + 23 = 83 minutes.
To calculate the latest starting time, we subtract the total time needed from the desired serving time:
2:39 P.M. - (39 minutes + 83 minutes)
First, let's convert 2:39 P.M. into minutes:
2 hours * 60 minutes/hour = 120 minutes
120 minutes + 39 minutes = 159 minutes
Now we subtract the total time needed:
159 minutes - (39 minutes + 83 minutes) = 159 minutes - 122 minutes = 37 minutes
Therefore, the latest time Erica can start preparing the ingredients is 37 minutes before 2:39 P.M., which is 2:02 P.M.