document.write( "Question 639117: The manual for your new car suggests using gasoline that is 89 octane. In order to save money, you decide to use some 87 octane and some 93 octane in combination with the 89 octane currently in your tank in order to have an approximate 89 octane mixture. Assuming you have 2 gallons of 89 octane remaining in your tank (your tank capacity is 20 gallons), how many gallons of 87 octane should you put in your tank to achieve a mixture of 89 octane? \n" ); document.write( "

Algebra.Com's Answer #402574 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "You can't get there...if you have 89 octane in your tank, the more 87 octane you put in with it will make the mixture closer to 87 octane.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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