A 7 by 5 photo was enlarged. The length and width were enlarged 125%. Find the perimeter of the phot

Discussion in 'Calculator Requests' started by math_celebrity, Jan 13, 2019.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A 7 by 5 photo was enlarged. The length and width were enlarged 125%. Find the perimeter of the photo.

    Enlarge length 125%: 7 * 1.25 = 8.75
    Enlarge width 125%: 5 * 1.25 = 6.25

    Perimeter of the enlarged photo is 2l + 2w, so we have:
    P = 2(8.75) + 2(6.25)
    P = 17.5 + 12.5
    P = 30
     
    math_celebrity, Jan 13, 2019
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