document.write( "Question 981517: The fixed cost of developing a new drug is $3 billion. The unit cost of producing a single dose of the drug is $1, and patients are charged $11 per dose. In order to make a $1 billion profit on the drug, how many doses must be sold?\r
\n" ); document.write( "\n" ); document.write( "300,000,000
\n" ); document.write( "350,000,000
\n" ); document.write( "400,000,000
\n" ); document.write( "500,000,000
\n" ); document.write( "None of the above
\n" ); document.write( "

Algebra.Com's Answer #602528 by Fombitz(32388)\"\" \"About 
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The cost of the drug is,
\n" ); document.write( "\"C=3000000000%2B%281%29X\"
\n" ); document.write( "where X is the number of doses.
\n" ); document.write( "The revenue from the drug is,
\n" ); document.write( "\"R=11X\"
\n" ); document.write( "So,
\n" ); document.write( "\"P=R-C\"
\n" ); document.write( "\"1000000000=3000000000%2BX-11X\"
\n" ); document.write( "\"-2000000000=-10X\"
\n" ); document.write( "\"X=200000000\"
\n" ); document.write( "200 million doses
\n" ); document.write( "None of the above.
\n" ); document.write( "
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