Algebra and Up:
Question: Sweet Pea the dog holds the world record for the fastest 100 meters walked with a can balanced on her head. (Seriously.) She traveled the 100 meters in 2 minutes and 55 seconds. What was Sweet Pea's average speed measured in meters per second?
Answer: 4/7 meters per second
Solution: First, we need to know how many seconds are in 2 minutes and 55 seconds. Two minutes is the same as 120 seconds, and 55 more makes 175 seconds in total. A hundred meters over 175 seconds is the same as is the same as 100 ÷ 175 = 4/7 meters per second.
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