A lily pad doubles in size each day. If it takes 28 days for the lily pad to cover the entire pond, how many days will it take to cover 1/4 of the pond?
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show your work
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First Method:
Alright, so it takes 28 days for the lily pad to cover the entire pond. If you divide the pond into quarters according to the number of days it takes to cover the pond (28), you will have to divide 28 by 4, correct? That would be equal to 7. Therefore, it would take 7 days or one week to cover 1/4 of the pond.
Second Method:
You could break it down from largest to smallest. Here's what I mean. 28/2 is 14. So that's half the time, and half the pond, right? Now, 14/2 is 7. That is a quarter of the time, and a quarter of a pond.
Hope I helped you out!
Alright, so it takes 28 days for the lily pad to cover the entire pond. If you divide the pond into quarters according to the number of days it takes to cover the pond (28), you will have to divide 28 by 4, correct? That would be equal to 7. Therefore, it would take 7 days or one week to cover 1/4 of the pond.
Second Method:
You could break it down from largest to smallest. Here's what I mean. 28/2 is 14. So that's half the time, and half the pond, right? Now, 14/2 is 7. That is a quarter of the time, and a quarter of a pond.
Hope I helped you out!
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26 days. See this by working backwards.........
100% coverage takes 28 days
50% coverage takes 27 days
25% coverage takes 26 days...and so on
100% coverage takes 28 days
50% coverage takes 27 days
25% coverage takes 26 days...and so on
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