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STALIN [3.7K]
3 years ago
11

Find the sum of the arithmetic sequence. -1, 2, 5, 8, 11, 14, 17

Mathematics
1 answer:
muminat3 years ago
8 0
56 is you answer you need.
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borishaifa [10]

2\frac{2}{3} of 2\frac{17}{56} is 6\frac{1}{7}

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Given 2\frac{2}{3} of what number is 6\frac{1}{7}.

Let us first convert the mixed fraction into improper fraction.

$2\frac{2}{3}=\frac{(2\times3)+2}{3}=\frac{8}{3}

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Now, let us take the unknown number be x.

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$ x=\frac{43}{7}\times\frac{3}{8}

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$ x=\frac{129}{56}

Now, again change the improper fraction into mixed fraction.

$ x=2\frac{17}{56}

Hence 2\frac{2}{3} of 2\frac{17}{56} is 6\frac{1}{7}.

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