document.write( "Question 83238: The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with a diameter 2 inches costs $48.00, how much will a 8 foot length with a diameter of 4 inches cost? \n" ); document.write( "
Algebra.Com's Answer #59878 by ankor@dixie-net.com(22740)\"\" \"About 
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The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 5 foot length with a diameter 2 inches costs $48.00, how much will a 8 foot length with a diameter of 4 inches cost?
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\n" ); document.write( " L*D*k = Cost
\n" ); document.write( " 5*2*k = 48
\n" ); document.write( " 10k = 48
\n" ); document.write( " k = 4.8
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\n" ); document.write( "For 8' of 4\" tubing:
\n" ); document.write( "Cost = 8*4*4.8
\n" ); document.write( "Cost = $153.60
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\n" ); document.write( "First inclination was to change the length to inches also, but you get the same
\n" ); document.write( "answer whether you do or don't\r
\n" ); document.write( "\n" ); document.write( "Using all inches k = .4
\n" ); document.write( "Cost = 96*4*.4 = $153.60
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