document.write( "Question 808442: Old chevy uses premium gas. accidently topped off with 5 gallos of regular gas. Tank holds 16 galls. Car gets 17 miles pergallon. How many miles will I have to drive care so that when I fill up the gantke with premium, the mixzture is 95% or greater?\r
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document.write( "I figured out percentages of regular to premium in 16 gal tank 32% and 69%. I can figure out the miles per gal. by dividing by 17 Mile/gal once I know how many gallons I need. Problem is when I mizx 100% premium with 69% premium. I don't know how to set it up. \n" );
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Algebra.Com's Answer #487046 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! Try to think your way through the process described.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "16 gallons of regular; \n" ); document.write( "17 miles per gallon. \n" ); document.write( "Want \"mixture\" to become 95% premium gasoline, so how much room needs to be in the tank to do this? Review that information and think, before continuing...\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The 16 gallons of regular is thought to be as 0% premium. You may start this through \"algebra\". v = how much to remove and replace with premium to get 95% premium:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The old chevy must consume 15.2 gallons of the regular gasoline and replace it with the premium gasoline to obtain the mixtures of 95% premium... but how many MILES correspond to this 15.2 miles?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use the fuel efficiency datum. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |