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a big sphere of diameter 36 cm is melted to form four iron rod. Then the iron rod are melted to make some iron balls of radius 9 c

By Anna

a big sphere of diameter 36 cm is melted to form four iron rod. Then the iron rod are melted to make some iron balls of radius 9 cm. Find the height of cylindrical rod and how many balls can be formed by the cylindrical rod.​

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Anna

total weight =
[tex] 9 \div 2 + 15 \div 4 + 11 \div 5[/tex]
​

Solve the following pain of
linear equations.
10/x+y+2/x-y=4
15/x+y+5/x-y=-2​

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