document.write( "Question 1055128: The total revenue R (in dollars) is directly proportional to the number of units sold x. When 25 units are sold, the total revenue is $275. Find a mathematical model that relates the total revenue R to the number of units sold x.
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #670332 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
k, proportionality constant;\r
\n" ); document.write( "\n" ); document.write( "\"R=kx\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"275=k%2A25\"
\n" ); document.write( "
\n" );