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lina2011 [118]
3 years ago
7

Dennis is getting balloons for his grandmother's birthday party. He wants each balloon string to be 9 feet long. At the party st

ore, string is sold by the yard. If Dennis wants to get 56 balloons, how many yards of string will he need?
Mathematics
1 answer:
yanalaym [24]3 years ago
8 0
504 because every 9 feet is 3 yards and you would multiply the three yards ( 9 feet) by your 56 balloons
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Step-by-step explanation:

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Step-by-step explanation:

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Hello,

\dfrac{1}{n} - \dfrac{1}{n+1} = \dfrac{1}{n(n+1)} \\

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...\\
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Adding member by member, we have

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\dfrac{1}{1}  - \dfrac{1}{n+1} \\

= \dfrac{n}{n+1} \\



if n=100 sum \boxed{= \dfrac{100}{101} }


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