document.write( "Question 307732: Yoko purchased a prepaid phone card for $30. Long distance calls cost 9 cents a minute using this card. Yoko used her card only once to make a long distance call. If the remaining credit on her card is $27.93, how many minutes did her call last? \n" ); document.write( "
Algebra.Com's Answer #220110 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "We can set up an equation using x to show minutes. \n" ); document.write( "30-.09x=27.93 Subtract 30 to both sides to get: \n" ); document.write( "-.09x=-2.07 Divide both sides by -.09 to get: \n" ); document.write( "x= 23 minutes \n" ); document.write( "There we go. \n" ); document.write( "Make sense? \n" ); document.write( "RJ \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |