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4 July, 22:02

Mary enlarged a 4-by 6-inch photo a 10 by 15-inch photo. what is the scale factor of the dilation

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  1. 4 July, 23:52
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    The scale factor of the dilation is given by:

    (new length of the photo) / (old length of the photo)

    the dimensions of the old photo is 4 in by 6 in

    the dimensions of the new photo is 10 in by 15 in

    length of old photo=6

    length of new photo=15

    scale factor=15/6=2.5
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