document.write( "Question 93451: A school ordered $600 worth of lightbulbs. Some of the lightbulbs cost $1 each and the others cost $2 each. If twice as many $1 bulbs as $2 bulbs were ordered, how many lightbulbs were ordered altogehter? \n" ); document.write( "
Algebra.Com's Answer #68033 by checkley75(3666)\"\" \"About 
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2*1*X+1*2*X=600
\n" ); document.write( "2X+2X=600
\n" ); document.write( "4X=600
\n" ); document.write( "X=600/4
\n" ); document.write( "X=150 ANSWER FOR THE NUMBER IF $2.00 BULBS.
\n" ); document.write( "X=2*150=300 ANSWER FOR THE NUMBER OF $1.00 BULBS.
\n" ); document.write( "PROOF
\n" ); document.write( "2*150+1*300=600
\n" ); document.write( "300+300=600
\n" ); document.write( "600=600
\n" ); document.write( "
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