Am I thicker than a Whale omlette ?
02 May 2004, 07:34 PM
#1
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Am I thicker than a Whale omlette ?
Okay. Vote now
11 3/4 yr old kids maths homework was causing grief so I "helped out"
Example Question
Describe the following sequence
5, 10, 15, 20, 25 ...
I suggested n+5
Apparently I am to report to teacher for detention.
I have been told it should be 5n
What think you all ???
11 3/4 yr old kids maths homework was causing grief so I "helped out"
Example Question
Describe the following sequence
5, 10, 15, 20, 25 ...
I suggested n+5
Apparently I am to report to teacher for detention.
I have been told it should be 5n
What think you all ???
02 May 2004, 08:00 PM
#5
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5 + n could give you answers that were from 5 upwards with any separation e.g. if n = 1 then the answer is 6, which doesn't fit the sequence.
If they were being accurate the teacher should have said 5n defined the sequence, where n is an integer, .
If they were being accurate the teacher should have said 5n defined the sequence, where n is an integer, .
02 May 2004, 08:01 PM
#6
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Of course its 5n, where n is the nth number of the sequence.
1x5, 2x5, 3x5, 4x5, ,5x5
n+5 would go:
1+5, 2+5, 3+5, 4+5, 5+5
You are thicker than a whale omlette!
1x5, 2x5, 3x5, 4x5, ,5x5
n+5 would go:
1+5, 2+5, 3+5, 4+5, 5+5
You are thicker than a whale omlette!
02 May 2004, 08:04 PM
#7
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Originally Posted by ajm
Of course its 5n, where n is the nth number of the sequence.
1x5, 2x5, 3x5, 4x5, ,5x5
n+5 would go:
1+5, 2+5, 3+5, 4+5, 5+5
You are thicker than a whale omlette!
1x5, 2x5, 3x5, 4x5, ,5x5
n+5 would go:
1+5, 2+5, 3+5, 4+5, 5+5
You are thicker than a whale omlette!
so there we go, the Scoobynet thicker than a whale omlette club
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02 May 2004, 08:06 PM
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I suppose it all depends on what the term 'n' is supposed to mean.
If 'n' is the position in the sequence (i.e. 1 = the first number, 2 = the second number etc), then eClaire's answer would have given the sequence:-
6, 7, 8, 9, etc
The school's answer then makes sense.
Pete The Biker
If 'n' is the position in the sequence (i.e. 1 = the first number, 2 = the second number etc), then eClaire's answer would have given the sequence:-
6, 7, 8, 9, etc
The school's answer then makes sense.
Pete The Biker
02 May 2004, 08:36 PM
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Originally Posted by Pete The Biker
I suppose it all depends on what the term 'n' is supposed to mean.
02 May 2004, 08:48 PM
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Originally Posted by milo
there are no "if's"... n ALWAYS means the position in the sequence in math sequences. so yeah.. its 5n.
Pete The Biker
02 May 2004, 10:15 PM
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Originally Posted by BumbleBee
jods, go back to the teacher and show him/her
do i = 5,10,15,20,25,......:
n(i)+5 :
end i :
Then your suggestion is a reasonable description of the sequence.
do i = 5,10,15,20,25,......:
n(i)+5 :
end i :
Then your suggestion is a reasonable description of the sequence.
you'd have 2 change it to i = 0, 5, 10...
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