document.write( "Question 31800: Someone asked this question earlier and the answer is given I just want to know how u got .75? \r
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document.write( "A pair of jeans sells for $36 after a 25% discount. What is the original price of the jeans?\r
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document.write( "x-0.25x=36
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document.write( "0.75x = 36
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document.write( "x = 36/0.75
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document.write( "x = 48 \r
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document.write( "So, the answer is $48. How dod uget the .75 What do u do to get that? Thank You
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Algebra.Com's Answer #18400 by longjonsilver(2297)![]() ![]() You can put this solution on YOUR website! in words: \n" ); document.write( "let original price be x \n" ); document.write( "So we then reduce the price by 25%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So what is 25% of x? Well, 25% is 25 percent. PERCENT is Latin: PER CENT....out of 100. So 25 out of 100 is 25/100 --> 0.25.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So 0.25 of x means 0.25x. This is the amount we took off, to reduce the price.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So we had ORIGINAL less REDUCTION = new price \n" ); document.write( "--> x - 0.25x = 36 \n" ); document.write( "--> 1x - 0.25x = 36 \n" ); document.write( "--> 0.75x = 36 \n" ); document.write( "--> x = 36/0.75 \n" ); document.write( "--> x = 48\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Once you get used to questions like these, you can do the majority in your head:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Eg reduce by 12% is 0.88x, since we have x-0.12x. \n" ); document.write( "Eg reduce by 40% is 0.60x, since we have x-0.40x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Simialrly, an increase of 15% is 1.15x, since we have x+0.15x. And so on.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Does that help?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "jon. \n" ); document.write( " \n" ); document.write( " |