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)\"\" \"About 
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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
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