document.write( "Question 368759: Violet knows that her subscription rate for the basic tier of cable television increased from $18.20 to $19.50 at some point during the calendar year. She paid a total of $230.10 for the year to the cable company. Determine the month of the rate increase. \n" ); document.write( "
Algebra.Com's Answer #262717 by rfer(16322) ![]() You can put this solution on YOUR website! x+y=12 x=-y+12 \n" ); document.write( "18.20x+19.50y=230.10 \n" ); document.write( "18.20(-y+12)+19.50y=230.10 \n" ); document.write( "-18.20y+218.40+19.50y=230.10 \n" ); document.write( "1.30y=11.7 \n" ); document.write( "y=9 mo at $19.50 \n" ); document.write( "x=12-y=3 mo at $18.20 \n" ); document.write( " \n" ); document.write( " |