2 years ago

Write the sum using summation notation 729 + 1000 + 1331 + 1728 + ... + n^3

Mathematics

1 answer:

Veronika [31]2 years ago

6 0

$\displaystyle
\sum_{i=9}^n n^3$

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Hi. The answer is 26000

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Paraphin [41]

Answer:

His wife gets $336 more than his son.

Step-by-step explanation:

Colin and Brian:

Ratio of 4:1.

So Colin gets $\frac{4}{4+1} = \frac{4}{5}$ of the prize.

$\frac{4*2100}{5} = 1680$

Colin got $1680. Dividing between himself, his wife and their son:

Ratio of 2:5:3.

So Colin gets $\frac{2}{2+3+5} = \frac{2}{10}$ , his wife gets $\frac{5}{2+3+5} = \frac{5}{10}$ and his son gets $\frac{3}{2+3+5} = \frac{3}{10}$

Wife:

$\frac{5*1680}{10} = 840$

His wife got $840.

Son:

$\frac{3*1680}{10} = 504$

His son got $504.

How much more does his wife get over their son?

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2 years ago

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Answer:

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greatest common factor is 15cd

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1 year ago