Mathematics
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OpenStudy (anonymous):
need help with finding the next three terms in each sequence 1,8,27,64 could anybody help me
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OpenStudy (anonymous):
what is the common thing that you notice about these numbers?
OpenStudy (anonymous):
i dont know they all use multiplication
OpenStudy (anonymous):
think hard. what is 8 divided by 2?
OpenStudy (anonymous):
4
OpenStudy (anonymous):
and 4 divided by 2?
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OpenStudy (anonymous):
2
OpenStudy (anonymous):
good. so 8 is 2 times 2 times 2. do you see a similar pattern in the rest of the numbers?
OpenStudy (anonymous):
no i still do see the pattern
OpenStudy (anonymous):
okay. what is 27/3?
OpenStudy (anonymous):
81
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OpenStudy (anonymous):
I asked 27/3, not 27*3 :)
OpenStudy (anonymous):
9
OpenStudy (anonymous):
and 9/3?
OpenStudy (anonymous):
3
OpenStudy (anonymous):
so 27 is 3 times 3 times 3. Now do you see a pattern?
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OpenStudy (anonymous):
so each on is divided by the same number 3 time
OpenStudy (anonymous):
let's see if that's true,
1 is 1 times 1 times 1
8 is 2 times 2 times 2
27 is 3 times 3 times 3
so what should 64 be?
OpenStudy (anonymous):
4
OpenStudy (anonymous):
2^3, 3^3, 4^3, etc
no, cube root
OpenStudy (anonymous):
64 is 4?
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OpenStudy (anonymous):
they are all cube root LOL good job mate
OpenStudy (anonymous):
they are all cube root LOL good job mate
OpenStudy (anonymous):
so the next on is number is going to 125
OpenStudy (anonymous):
yes, and the two after that?
OpenStudy (anonymous):
216,343
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OpenStudy (anonymous):
there you go! you got your answers :)
OpenStudy (anonymous):
got other question could you help me with those
OpenStudy (anonymous):
sure, but before you post them, try to work out the answers on your own, you will learn better.
OpenStudy (anonymous):
@cable83, thank you! :)