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29 September, 23:02

A pencil costs $0.25 more than an eraser. if the cost of eight pencils is $6.80, what is the cost of one eraser?

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Answers (2)
  1. 30 September, 00:10
    0
    Cost of pencil = x+0.25

    Cost of eraser = x

    Cost of 8 pencil = 6.80

    Cost of 1 pencil = 6.80/8 = 0.85

    So the cost of eraser

    0.85 = x+0.25 (cost of 1 pencil)

    0.85-0.25 = x

    0.6 = x

    So the cost of eraser is $ 0.6
  2. 30 September, 02:26
    0
    Cost of Pencil $6.80 / 8

    = $0.85

    Cost of eraser

    $0.85 - $0.25

    = $0.60
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