document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104784>Question 1104784</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The price of an item (presumably 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?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719477 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719477\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the price for cooking oil went up 15%.\r<BR>\n" );
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document.write( "if the price was x, then the new price is 1.15 * x.\r<BR>\n" );
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document.write( "to get back to x, you have to divide 1.15 * x by 1.15.\r<BR>\n" );
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document.write( "therefore, they would have to divide their current usage by 1.15 so that their total cost would be the same as it was before.\r<BR>\n" );
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document.write( "for example, let's say the price of cooking oil was 60 cents a quart.\r<BR>\n" );
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document.write( "the family uses 10 quarts a week.\r<BR>\n" );
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document.write( "their current cost for cooking oil is 10 * .60 = $6.00 a week.\r<BR>\n" );
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document.write( "the price goes up 15%, so instead of being 60 cents, it is now 1.15 * 60 = 69 cents.\r<BR>\n" );
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document.write( "if their kept their usage the same, their cost would now be 10 * .69 = $6.90 a week.\r<BR>\n" );
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document.write( "in order to keep their total cost the same as it was before, they would have to divide their current usage of cooking oil by 1.15.\r<BR>\n" );
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document.write( "10 quarts / 1.15 = 8.695652174.\r<BR>\n" );
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document.write( "they could only use 8.695652174 quarts of cooking oil a week when they were previously using 10 quarts of cooking oil a week.\r<BR>\n" );
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document.write( "8.695652174 * .69 = $6.00.\r<BR>\n" );
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document.write( "this is the same cost that they were using before the price went up.\r<BR>\n" );
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