document.write( "Question 1089172: The price of cooking oil went up by 15%. The percentage of reduction that a family should effect in the use of cooking oil so as not to increase the expenditure on this account is ? \n" ); document.write( "
Algebra.Com's Answer #703516 by josgarithmetic(39628)\"\" \"About 
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Normally usage is some Q units of cooking oil.\r
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\n" ); document.write( "\n" ); document.write( "Increased cost \"1.15cross%28Q%29\"
\n" ); document.write( "Cost wanted, \"1.00%2Across%28Q%29\"\r
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\n" ); document.write( "\n" ); document.write( "x, fraction of 1.00Q cost
\n" ); document.write( "\"1.15Qx=1.00Q\"
\n" ); document.write( "\"1.15x=1\"
\n" ); document.write( "\"x=1%2F1.15\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=0.870\"\r
\n" ); document.write( "\n" ); document.write( "Family should use 87% of the oil that they had used now that the price increased, to keep the expenditure the same.
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