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Vitek1552 [10]
3 years ago
7

She has 100 chairs that she needs to arrange in a perfect square. How many rows of chairs does she need to make?

Mathematics
2 answers:
Mice21 [21]3 years ago
8 0
She needs to make 10 rows of chairs !!
Nookie1986 [14]3 years ago
3 0

Answer:

She needs to make 10 rows of chairs

Hope this helps!!

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1/3 cup of flour is used to make 5 dinner rolls. how many cups of flour are needed to make 3 dozen dinner rolls
MAVERICK [17]
F = Cup of flour

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---------

1/3 * F = 5 * D

n * F = 36 * D

------

\frac { 1 }{ 3 } F=5D\\ \\ 3\cdot \frac { 1 }{ 3 } F=3\cdot 5D\\ \\ F=15D

nF=36D\\ \\ n=\frac { 36D }{ F }

This means that...

n=\frac { 36D }{ 15D } \\ \\ n=\frac { 36 }{ 15 } \\ \\ n=\frac { 3\cdot 12 }{ 3\cdot 5 } \\ \\ n=\frac { 12 }{ 5 } \\ \\ n=\frac { 10 }{ 5 } +\frac { 2 }{ 5 } \\ \\ n=2+\frac { 2 }{ 5 }

And this means that two cups of flour and 2/5 of a cup of flour are required to make 3 dozen dinner rolls.
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How do you do #3 so I get the correct answer
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