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SashulF [63]
3 years ago
15

What is the next number in the sequence? Explain your reasoning.

Mathematics
1 answer:
kenny6666 [7]3 years ago
5 0
1,4,7,10,13,16   a_{n+1}=a_{n}+3
1,5,9,13,17,21   a_{n+1}=a_{n}+5
3,8,18,38,78,158    Add 5, Add 10, Add 20 etc.
5,8,14,16,40,88    Add 3, Add 6, Add 12, Add 24 etc.  
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Length (L): 2w + 6

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Perimeter (P) = 2L + 2w

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               240 = 4w + 12 + 2w

               240 = 6w + 12

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Length (L): 2w + 6   = 2(38) + 6   = 76 + 6   = 82

Answer: width = 38 ft, length = 82 ft

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