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Math Help - sale by percent

  1. #1
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    sale by percent

    Heather saw a sign for a dress on sale
    All item 10% to 50% off. she has been saving money to buy a dress that regurlarly cost $80.00. heather friend told her she needs to have between $40.00 to 60.00 to buy the dress at the sale price. Is her friend correct
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  2. #2
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    Quote Originally Posted by stephlova59 View Post
    Heather saw a sign for a dress on sale
    All item 10% to 50% off. she has been saving money to buy a dress that regurlarly cost $80.00. heather friend told her she needs to have between $40.00 to 60.00 to buy the dress at the sale price. Is her friend correct
    Hello,

    100% ---> $80.00
    10% ----> $8.00
    50% ----> $40.00

    The reduced price at 10% off is now $72.00 and the reduced price at 50% off is $40.00.
    The statement of Heather's friend is therefore partly wrong.

    EB
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  3. #3
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    Quote Originally Posted by stephlova59 View Post
    Heather saw a sign for a dress on sale
    All item 10% to 50% off. she has been saving money to buy a dress that regurlarly cost $80.00. heather friend told her she needs to have between $40.00 to 60.00 to buy the dress at the sale price. Is her friend correct
    yah, may be she can get it.
    Heather friend is appoximately correct
    because the percentage is 10%to 50%
    cost price =$80
    Percentage for 10%=$80*10/100=$8,that means $80-$8=$72
    Percentage for 20%=$80*20/100=$16,that means $80-$16=$64
    Percentage for 30%=$80*30/100=$24,that means $80-$24=$54
    Percentage for 40%=$80*40/100=$32,that means $80-$32=$48
    Percentage for 50%=$80*50/100=$40,that means $80-$40=$40
    Now u may understood the percentage
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  4. #4
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    Quote Originally Posted by stephlova59 View Post
    Heather saw a sign for a dress on sale
    All item 10% to 50% off. she has been saving money to buy a dress that regurlarly cost $80.00. heather friend told her she needs to have between $40.00 to 60.00 to buy the dress at the sale price. Is her friend correct
    yah, may be she can get it if it is in the following .
    Heather friend is appoximately correct
    because the percentage is 10%to 50%
    cost price =$80
    Percentage for 10%=$80*10/100=$8,that means $80-$8=$72
    Percentage for 20%=$80*20/100=$16,that means $80-$16=$64
    Percentage for 30%=$80*30/100=$24,that means $80-$24=$54
    Percentage for 40%=$80*40/100=$32,that means $80-$32=$48
    Percentage for 50%=$80*50/100=$40,that means $80-$40=$40
    Now u may understood the percentage
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