-20
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50
840 feet/40 seconds = 21 feet per second.840 feet/40 seconds = 21 feet per second.840 feet/40 seconds = 21 feet per second.840 feet/40 seconds = 21 feet per second.
40
To find the Least Common Multiple (LCM) of 40 seconds and 1 minute, we need to convert both quantities to the same unit of time. Since 1 minute is equal to 60 seconds, we can rewrite 1 minute as 60 seconds. The LCM of 40 seconds and 60 seconds is 120 seconds, as it is the smallest multiple that both 40 and 60 can evenly divide into.
40 wpm