document.write( "Question 129212This question is from textbook Beginning & Intermediate Algebra
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document.write( ": Sales: A dealer bought some radios for a total of $1200. She gave away 6 radios as gifts, sold each of the rest for $10 more than she paid for each radio, and broke even. How many radios did she buy? \n" );
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Algebra.Com's Answer #94586 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! let x=\"radios bought\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x-6)((1200/x)+10)=1200\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiplying by x and dividing by 10 __ (x-6)(120+x)=120x __ x^2+114x-720=120x \n" ); document.write( "__ x^2-6x-720=0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "factoring __ (x-30)(x+24)=0 \n" ); document.write( " |