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Real-Life Activities

Real-Life Math -- Solution

Here is a great way to compare the 3:

lunchbox.gif

Lunch box A lost 10 degrees in the first hour, none for the next 2 hours and then 20 more degrees in the last hour.

Lunch box B lost heat steadily at 7.5 degrees per hour.

Lunch box C lost all the heat it was going to lose in the first hour and kept the temperature steady at 70 degrees for 3 more hours.