document.write( "Question 1201573: an online store sells two types of speaker docks for smartphones. the higher-priced speaker dock sells for $1900, and the lower-priced speaker dock sells for $800. last week the store sold three times as many lower-priced speaker docks as higher-priced speaker docks. combined sales totaled $34400. indicate how man lower-priced speaker docks did it sell? \n" ); document.write( "

Algebra.Com's Answer #836017 by Theo(13342) $\"\"$ $\"About$

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higher priced speaker dock is 1900.
\n" ); document.write( "lower price speaker dock is 800.
\n" ); document.write( "last week store sold 3 times as many lower priced speaker docks as higher priced speaker docks.
\n" ); document.write( "let x = number of lower price speaker docks.
\n" ); document.write( "let 3x = number of higher price speaker docks.
\n" ); document.write( "you get 3x * 800 + x * 1900 = 34400.
\n" ); document.write( "combiine like terms to get 2400x + 1900x = 34400.
\n" ); document.write( "combine like terms to get 4300x = 34400.
\n" ); document.write( "solve for x to get x = 8.
\n" ); document.write( "they sold 24 lower price speaker docks and 8 higher price speaker docks.
\n" ); document.write( "total sales is 24*800 + 8*1900 = 19200 + 15200 = 34400.
\n" ); document.write( "solution is they sold 24 lower priced docks.\r
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