Cecily is swinging. The swing goes back and forth twice every five seconds. How many seconds does it take her to go back and forth one hundred times? About how many minutes is that?
Please help me.
250 seconds. So 4.17 mins. On my worksheet, it has selections: 3 1/2 mins, 4 mins, and 4 1/2 mins. If u have choices like these it’s probs 4 1/2 sry if I’m wrong.
To find out how many seconds it takes Cecily to go back and forth one hundred times, we need to determine the time it takes for one back and forth motion.
Given that the swing goes back and forth twice every five seconds, we can calculate the time for one back and forth motion as follows:
Time for one back and forth motion = 5 seconds / 2 = 2.5 seconds
Next, to find the total time for one hundred back and forth motions, we can multiply the time for one motion by one hundred:
Total time for one hundred back and forth motions = 2.5 seconds * 100 = 250 seconds
Therefore, it takes Cecily 250 seconds to go back and forth one hundred times.
To determine the number of minutes, we can divide the total time in seconds by 60 (since there are 60 seconds in one minute):
Number of minutes = 250 seconds / 60 = 4.17 minutes (rounded to two decimal places)
Therefore, it takes Cecily approximately 4.17 minutes to go back and forth one hundred times.
2 times/5 sec = 100 times/x sec
2/5 = 100/x
2x = 500
x = 250
it would take 250 seconds, you tell me how many minutes that is ...
btw, I just noticed you already posted this and it was answered.
http://www.jiskha.com/display.cgi?id=1360705850
Why did you repost?