document.write( "Question 503674: Oil and gas are mixed in a ratio of 3:8. If the oil costs 73 cents per liter and the gas costs 35 cents per liter, how many full liters of the mixture can be made for $20? \n" ); document.write( "

Algebra.Com's Answer #339354 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"a\"$ = liters of oil
\n" ); document.write( " $\"+%288%2F%283+%2B+8%29%29%2Aa+\"$ = liters of gas
\n" ); document.write( "---------------
\n" ); document.write( " $\"+73a+%2B+35%2A%288%2F11%29%2Aa+=+2000+\"$ (in cents)
\n" ); document.write( "Multiply both sides by $\"11\"$
\n" ); document.write( " $\"+803a+%2B+280a+=+22000+\"$
\n" ); document.write( " $\"+1083a+=+22000+\"$
\n" ); document.write( " $\"+a+=+20.314+\"$
\n" ); document.write( " $\"+%288%2F11%29%2Aa+=+14.774+\"$
\n" ); document.write( " $\"+20.314+%2B+14.774+=+35.088+\"$
\n" ); document.write( "35.088 liters of the mixture can be made
\n" ); document.write( "for $20 \n" ); document.write( "

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