document.write( "Question 996443: The total revenue R is directly proportional to the numver of units sold x. When 25 units are sold, the revenue is Php 30,000. Find the revenue when 58 units were sold? \n" ); document.write( "
Algebra.Com's Answer #614922 by fractalier(6550)\"\" \"About 
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Direct proportion means
\n" ); document.write( "R = kx.
\n" ); document.write( "If R = 30000 when x = 25, we can find k...
\n" ); document.write( "k = R/x = 30000/25 = 1200
\n" ); document.write( "Thus we have
\n" ); document.write( "R = 1200x
\n" ); document.write( "If x = 58 we have
\n" ); document.write( "R = 1200(58) = 69600
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