document.write( "Question 323965: The cost in dollars of manufacturing x refrigerators is 9000 + 400x. the amount received when selling these x refrigerators is 500x dollars. what is the least number of refrigerators that must be manufactured and sold so that the amount received is at least equal to the manufacturing cost ?\r
\n" ); document.write( "\n" ); document.write( "A 10 B 18 C 45 D 90 E 100
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Algebra.Com's Answer #231881 by mananth(16946)\"\" \"About 
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9000+400x is the cost of x refrigerators
\n" ); document.write( "sales value = 500x
\n" ); document.write( "They have to be same to break even
\n" ); document.write( "..
\n" ); document.write( "9000+400x =500x
\n" ); document.write( "9000=500x-400x
\n" ); document.write( "100x=9000
\n" ); document.write( "x= 90 refrigerators
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