document.write( "Question 1092486: If the price of petrol is increased by 30%how much percent a car owner must reduce his consumption in order to maintain the same budget \n" ); document.write( "

Algebra.Com's Answer #707092 by ikleyn(52810) $\"\"$ $\"About$

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document.write( "Let old price was P dollars per gallon.\r\n" );
document.write( "Let old consumption was G gallons.\r\n" );
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document.write( "New price is 1.3*P.\r\n" );
document.write( "New consumption is x gallons.\r\n" );
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document.write( "The equation is\r\n" );
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document.write( "1.3*P*x = P*G.     (1)\r\n" );
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document.write( "Hence,  x =  = 0.769*G.\r\n" );
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document.write( "Answer.  New consumption must be  0.769*G,  or   part of the old consumption.\r\n" );
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document.write( "     Equation (1) - your basic equation.\r\n" );
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document.write( "     And also the logic behind this solution, which leads to equation (1).\r\n" );
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