document.write( "Question 1133784: a department at a store they sell 50 ml and 100 ml of perfume bottles, seventy bottles give a total of 5 llitres of perfume, if each 50 ml bottle is sold for $45 and each 100 ml bottle is sold for $72, what is the total revenue from the sale of all 70 bottles? \n" ); document.write( "

Algebra.Com's Answer #751018 by josmiceli(19441) $\"\"$ $\"About$

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$\"+5+\"$ L = $\"+5000+\"$ ml
\n" ); document.write( "Let $\"+x+\"$ = number of 50 ml bottles sold
\n" ); document.write( " $\"+70+-+x+\"$ = number of 100 ml bottles sold
\n" ); document.write( "Let $\"+R+\"$ = revenue from sales of all 70 bottles
\n" ); document.write( "------------------------------------------------------
\n" ); document.write( "(1) $\"+45x+%2B+72%2A%28+70+-+x+%29+=+R+\"$
\n" ); document.write( "(2) $\"+50x+%2B+100%2A%28+70+-+x+%29++=+5000+\"$
\n" ); document.write( "-------------------------------------------
\n" ); document.write( "(2) $\"+50x+%2B+7000+-+100x+=+5000+\"$
\n" ); document.write( "(2) $\"+50x+=+2000+\"$
\n" ); document.write( "(2) $\"+x+=+40+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+45%2A40+%2B+72%2A%28+70+-+40+%29+=+R+\"$
\n" ); document.write( "(1) $\"+1800+%2B+72%2A30+=+R+\"$
\n" ); document.write( "(1) $\"+R+=+1800+%2B+2160+\"$
\n" ); document.write( "(1) $\"+R+=+3960+\"$
\n" ); document.write( "$3,960 total revenue
\n" ); document.write( "------------------------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+45x+%2B+72%2A%28+70+-+x+%29+=+R+\"$
\n" ); document.write( "(1) $\"+45x+%2B+5040++-+72x+=+3960+\"$
\n" ); document.write( "(1) $\"+27x+=+1080+\"$
\n" ); document.write( "(1) $\"+x+=+40+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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