document.write( "Question 777294: Dear Math tutor,\r
\n" ); document.write( "\n" ); document.write( "A steel ball of volume 600cm^3 is melted down and made into three balls. A, B and C. if the volumes of A,B and C are in the ratio 7:5:3, calculate to 1 d.p the radius of each of A, B, and C.\r
\n" ); document.write( "\n" ); document.write( "do i add the ratios together and then divide it by 600? 600/15=13.4. then 13.4x7 ,13.4x5, 13.4x3 and use r^3=3V/4pi?\r
\n" ); document.write( "\n" ); document.write( "Best wishes,
\n" ); document.write( "Nats
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Algebra.Com's Answer #474015 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
The 600 \"cm%5E3\" is split into \"7%2B5%2B3=15\" parts.
\n" ); document.write( "volume A is \"%287%2F15%29%2A600=280\" \"cm%5E3\"
\n" ); document.write( "volume B is \"%285%2F15%29%2A600=200\" \"cm%5E3\"
\n" ); document.write( "volume C is \"%283%2F15%29%2A600=120\" \"cm%5E3\"\r
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\n" ); document.write( "\n" ); document.write( "Instead of my working and telling you the radii of those spheres, you should find them yourself.
\n" ); document.write( "v for volume, \"v=%284%2F3%29pi%2Ar%5E3\"
\n" ); document.write( "\"r%5E3=%283%2F4%29v%2Fpi\"
\n" ); document.write( "\"highlight%28r=root%283%2C%283v%29%2F%28pi%2A4%29%29%29\"
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