document.write( "Question 914334: Write the equation of variation .
\n" ); document.write( "The cost of a train ticket varies directly with the number of kilometers travelled. Ifa ticket for a 140-kilometers trip cost php 84, how mmuch would a 320-kilometer trip cost?
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Algebra.Com's Answer #555051 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Let p be constant of proportionality (meaning in this case, price)
\n" ); document.write( "let c be cost of a trip
\n" ); document.write( "let d be distance of a trip\r
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\n" ); document.write( "\n" ); document.write( "The direct variation description gives \"c=pd\", for c varies directly with d.\r
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\n" ); document.write( "\n" ); document.write( "Now, your values given are supposed to mean, \"84=p%2A140\", which allows you to find p.
\n" ); document.write( "\"p=84%2F140\"
\n" ); document.write( "\"highlight_green%28p=0.6%29\", Php per kilometer\r
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\n" ); document.write( "\n" ); document.write( "The more specific equation is now \"c=%280.60%29d\".
\n" ); document.write( "If d=320, then \"highlight%28c=%280.60%29%28320%29=highlight%28192%29%29\" Php.\r
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\n" ); document.write( "\n" ); document.write( "Problem question written more clearly than your other posting.
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