document.write( "Question 729763: Please help me solve this problem:
\n" ); document.write( "One music company charges a $15 membership fee and $0.75 each to download a song. Another company charges $.90 per song to download a song (no membership fee).\r
\n" ); document.write( "\n" ); document.write( "For what number of songs will both companies charge the same amount? How much will it cost when each company charges the same amount? Justify your answer using mathematics. \n" ); document.write( "
Algebra.Com's Answer #446250 by nerdybill(7384)\"\" \"About 
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One music company charges a $15 membership fee and $0.75 each to download a song. Another company charges $.90 per song to download a song (no membership fee).
\n" ); document.write( ".
\n" ); document.write( "Let x = number of songs downloaded
\n" ); document.write( "then
\n" ); document.write( "1st company:
\n" ); document.write( ".75x + 15
\n" ); document.write( "2nd company:
\n" ); document.write( ".90x
\n" ); document.write( ".
\n" ); document.write( "For what number of songs will both companies charge the same amount?
\n" ); document.write( "set the two equations equal to each other and solve for x:
\n" ); document.write( ".75x + 15 = .90x
\n" ); document.write( "15 = .15x
\n" ); document.write( "15/.15 = x
\n" ); document.write( "100 songs = x
\n" ); document.write( ".
\n" ); document.write( "How much will it cost when each company charges the same amount?
\n" ); document.write( "plug above into:
\n" ); document.write( ".90x
\n" ); document.write( ".90(100)
\n" ); document.write( "$90 \n" ); document.write( "
\n" );