document.write( "Question 577167: The work sheet is titled Direct/Inverse/Joint Variation\r
\n" ); document.write( "\n" ); document.write( "A spring extends or compresses in direct proportion to the mass being supported. If spring a extends 13 cm when supporting 100g how far will it extend when supporting 20 g?
\n" ); document.write( "y=kx
\n" ); document.write( "13=k100 k=13/100\r
\n" ); document.write( "\n" ); document.write( "y=(13/100)(20)= 13/5\r
\n" ); document.write( "\n" ); document.write( "Did I do this right?
\n" ); document.write( "Thank you!\r
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Algebra.Com's Answer #370105 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "The only thing I would have certainly done differently would have been to label your answer with the given units of measurement, i.e. 13/5 cm. You might also want to consider the audience for your answer -- what would be more understandable to whoever is reading your paper: 13/5 cm or 2.6 cm? For me, I had to stop and think about how big 13/5 cm is, but just a glance at 2.6 cm tells me it is just over an inch.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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\"The

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