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-   -   Dennis is buliding a scale model he needs to find how tall will his model be? (https://www.askmehelpdesk.com/showthread.php?t=342776)

  • Apr 17, 2009, 12:35 PM
    niqah
    Dennis is buliding a scale model he needs to find how tall will his model be?
    Dennis is building a scale model of an office building. He has chosen to use a sclae of 1.0 in. = 15 ft. If the actual height of the bulding is 180ft, how tall will his model be?? :)
  • Apr 17, 2009, 01:02 PM
    Capuchin

    for similar objects with dimensions (x,y) and (x',y'), x/x' = y/y'.
  • Apr 17, 2009, 08:39 PM
    Unknown008

    Or, if you are not used to formulae, by reasoning,

    15 ft is represented by 1.0 in.
    1 ft is represented by __ in.
    So, 180 ft will be represented by __ in.
  • Apr 18, 2009, 02:54 PM
    Lightning55

    Hmm...
    I'll help a bit more
    1in = x
    ---- ----
    15ft 180ft

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