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# Investigation of T-Shape.

Extracts from this document...

Introduction

Investigation of T-Shape:

This is a grind9 by 9, and there is at shape in the grind which is highlighted in colour red. It is called t-Shape.

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The number 20 at the bottom of the t-shape is called t- number (n), all the numbers

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As you see when t-number goes up 1 the t-total goes up 5

So, ratio of t-number and t-total is 1 : 5

Another way to work out the t-total is by formula

 n-19 n-18 n-17 n-9 n

So, total=n+(n-9)+(n-17)+(n-18)+(n-19)

=5n-63

So,   t=5n-63, when t is

Conclusion

Now here is an example of using the formula ( 5n – 63 = t-total )

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5 * 25 – 63 = t-total

5 * 25 – 63 = 62

t-total = 6 + 7 + 8 + 16 + 25

=62

This formula works

This student written piece of work is one of many that can be found in our GCSE T-Total section.

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# Related GCSE T-Total essays

1. ## T-total Investigation

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2. ## T-Totals. We have a grid nine by nine with the numbers starting from 1 ...

T-total = 2+11+19+20+21 =73 The reverse in the minus sign has worked. The next step is to move the shape on its side. Again we nearly keep the same formula as we had at the beginning. Again we change the minus number.

1. ## We have a grid nine by nine with the numbers starting from 1 to ...

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 The t-number is 70. Now to work out the difference between the t-number and the rest of the numbers

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1. ## The t-shape

The formula starts with 5* the t-number this is because there is a rise in the t-total by 5 for every t-number. We then -63 which do by working out the difference between the t-number and another number in the t-shape.

2. ## T-Shape Investigation.

T- Total is 2+3+4+9+15= 33 The T- Number of this T-shape is 15 I am now again going to put my information into a table so it is easier to see any patterns. T- Number T- Total First position 14 28 Second position 15 33 Here again I can see

1. ## The T-Total Mathematics Coursework Task.

38 127 76 317 39 132 77 322 40 137 78 327 41 142 79 332 42 147 80 337 43 152 44 157 47 172 48 177 49 182 50 187 51 192 52 197 53 202 56 217 57 222 Analysis of the 9 by 9 Grid with Normal T-shapes From this table major generalization can be made.

2. ## T-Total Investigation

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