document.write( "Question 729828: in a sale,a clothes shop reduces its prices by 15%. a shirt usually costs Ł40. how much is it in the sale? \n" ); document.write( "

Algebra.Com's Answer #446262 by hoomanc(14) $\"\"$ $\"About$

You can put this solution on YOUR website!
always try to substitute the word \"percent\" or sign \"%\" by(*(1/100)) that means you divide that number by 100, will help a lot,
\n" ); document.write( "so 15% or 15 percent is now:
\n" ); document.write( " $\"15%2A%281%2F100%29\"$ or $\"15%2F100%29\"$ or $\"0.15\"$ so,
\n" ); document.write( "the discount part is just 0.15 (let's name it \"desired part\")that means you should still had to pay for the rest which is $\"1-0.15=++0.85\"$ . let's name this as \"undesired part\"
\n" ); document.write( "Again the key to understand this type of questions is that all part of things or values are equal to one $\"1\"$ which consist of \"desired and undesired part\".
\n" ); document.write( "So, if you get a discount as 0.15 (desired) the rest would be 0.85 (undesired) to pay.
\n" ); document.write( "To figure out how much discount you are going to get, just multiply whole value (40 pounds) by the desired part which means : $\"0.15%2A40=6\"$ and the amount you have to pay $\"0.85%2A40=34\"$ pounds, respectively.\r
\n" ); document.write( "\n" ); document.write( "{Another example: if you have 20 dishes and break 25 percent of them by accident (25/100) (0.25 undesired) that means the rest of (0.75 desired) are still O.K. the (whole was 1) (faulty 0.25) (o.k. 0.75)} so,
\n" ); document.write( " $\"0.25%2A20=5\"$ are useless and
\n" ); document.write( " $\"0.75%2A20=15\"$ of them are still there for you to break them and have a relief, just joking.\r
\n" ); document.write( "\n" ); document.write( "hope that helps \n" ); document.write( "

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