Wednesday, October 5, 2011

Percentages:Review

Part 1:
Please review the topic on Percentages from ACE Learning focusing on the following areas:

Percentage


Part 2:
Complete the following questions:

Question 10

17 comments:

  1. (a) $1568
    (b) 25%
    (c) (x/100)(2000)
    (d) (2/3)(1500-6x) - (x/100)(2000) = ((200-3x)/300)(-500-6x)

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  2. (a) $1568
    (b) 27.6%
    (c) 20x [(0.25x8000)/100 x (x) = 20x]
    (d) (100/1000-4x) x (16x-1000) = (1/10 - 4x)(16x - 1000)
    = 8/5x -100 -64x^2 -4000

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  3. a) $1568
    b) 25%
    c) $2000-20x
    d) 12.25%-0.05x%

    ReplyDelete
  4. a) $1568
    b) 25%
    c) $[(8000x0.25)/100 x 100-x]
    d) 16x - 1000

    ReplyDelete
  5. [Answer Key]

    (a) $1568 (b) 25% (c) $[20(100 – x)] (d) $(8x – 100)

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  6. (a)$1568
    (b) 25%
    (c) $[20(100-X)]
    (d)16x-1000

    ReplyDelete
  7. (a)$1568
    (b)25%
    (c)[(0.25x8000)]x(100-x)
    (d) 16x - 1000

    ReplyDelete
  8. This comment has been removed by the author.

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  9. a) $1568
    b) 25%
    c) $[20(100-x)]
    d) 1000-12x

    ReplyDelete
  10. a) $1588
    b) 25%
    c) $2000 x (100-x)%
    d) 16X-1000

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  11. a)1568
    b)25%
    c)8000X$0.25=2000
    2000/100Xx=20x
    ans :$(2000-20x)
    d)$2/3(1500-6x)=$1000-4x
    $(1000-4x)-$(2000-20x)
    $16x-1000

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  12. (a) $1568
    (b) 25%
    (c) 8000X0.25=2000
    2000(100-x/100)
    =2000(100-x)/100
    =100[20(100-x)]/100(1)
    =20(100-x)
    =2000-20x
    ANS: $(2000-20x)
    (d) 2/3(1500-6x) - (2000-20x)
    = 1000-4x-2000+20x
    = 16x-1000
    ANS: $(16x-1000)

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  13. This comment has been removed by the author.

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  14. a) 1568
    b) 25%
    c) $(100-x)/100 x 2000 = $(20(100-x))
    d) 2/3(1500-6x) - (2000-20x) =(1000-4x-2000+20x) =(16x-1000)

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  15. a) 8000 X $0.20 X (100% - 2%)=$1568
    b) 25 - 20 = 5
    5/20 ÷ 100% = 25%
    c) 8000 X $0.25 =$2000
    $2000/100 = $20
    $20 X x = $20x
    $(2000-20x)
    d) $2/3(1500-6x) - $(2000 – 20x) = $(1000-4x)-$(2000 - 20x) = $(-1000+16x) = $(16x-1000)

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  16. (a) ANS: $1568

    (b) ANS: 25%

    (c) 8000 x $0.25 = $2000
    (100-x)/100 x $2000 = $[20(100-x)]
    ANS: $(2000-20x)

    (d) (1000-4x) - (2000-20x) = 16x-1000
    ANS: 16x-1000

    ReplyDelete
  17. a) $1568
    b) 25%
    c) 20(100-x)
    d) (2000-20x)-(1000-4x)
    16x-1000

    ReplyDelete