document.write( "Question 180813: Solve Variation Problem\r
\n" ); document.write( "\n" ); document.write( "The cost of pipe at Home Depo varies jointly as the length and
\n" ); document.write( "diameter of the pipe. If 20 feet of 0.5 inch diameter pipe
\n" ); document.write( "costs $36.60, then what is the cost of 12 feet of 0.75 inch
\n" ); document.write( "diameter pipe? \n" ); document.write( "
Algebra.Com's Answer #135550 by stanbon(75887)\"\" \"About 
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Solve Variation Problem
\n" ); document.write( "The cost of pipe at Home Depo varies jointly as the length and
\n" ); document.write( "diameter of the pipe.
\n" ); document.write( "---
\n" ); document.write( "c = k
\n" ); document.write( "--\r
\n" ); document.write( "\n" ); document.write( "If 20 feet of 0.5 inch diameter pipe
\n" ); document.write( "costs $36.60
\n" ); document.write( "Solve for \"k\":
\n" ); document.write( "36.60 = k[20*0.5]\r
\n" ); document.write( "\n" ); document.write( "k = 36.60/10 = 3.66
\n" ); document.write( "---
\n" ); document.write( "Equation:
\n" ); document.write( "c = 3.66[Ld]
\n" ); document.write( "---\r
\n" ); document.write( "\n" ); document.write( ", then what is the cost of 12 feet of 0.75 inch
\n" ); document.write( "diameter pipe?
\n" ); document.write( "---
\n" ); document.write( "c = 3.66[12*0.75]
\n" ); document.write( "cost = 3.66*9
\n" ); document.write( "cost = $32.94
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
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