Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 decade ago

math problem; please help:[?

Ashley walk 3/4 miles east, 1 mile south, then 1/2 mile west, then 1/4 north, and finally 3/4 miles east. How many miles is she in direct line from her starting point?

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  • 1 decade ago
    Favorite Answer

    In coordinate, east = +x , west = -x, north = +y, south = -y

    If she walks from origin (0,0), her new coordinate is

    (3/4 - 1/2 + 3/4, -1 + 1/4 )

    (1,-3/4)

    Using pythagoras

    h^2 = 1^2 + (-3/4)^2

    h^2 = 25/16

    h = 5/4 = 1.25 miles

  • 1 decade ago

    That could be a trick question. Youdo not specify if it is a direct line north/south or east/west or just in a place where a direct line can be created.

    East/West would be 3/4 of a mile

    North/South would be none

    And direct line in any direction would be approx. 5 miles

  • halac
    Lv 4
    1 decade ago

    total = 1mi east, 3/4mi south

    This is a 3-4-5 triangle (4/4 east, 3/4 south), so she is 5/4 miles from starting point

  • 1 decade ago

    easy.. just draw this on a piece of paper and using the same exact directions you have used.. you will end up having horizontal and verical lines... then you will need to connect the lines to gether and you will have some number of triangles... each vertical and horizontal line will have a value.. the diagonal value is the one you need... to find this use the pythagorus theorm.. diagonal (squared)= vertical (squared)+ horizontal (squared... then finally add up all the values you have .. simple

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  • 1 decade ago

    The square root of 1.125 miles....sorry my calc doesnt have a square root button

  • Anonymous
    1 decade ago

    hmm .....say that again?

  • 1 decade ago

    please do your own hw!

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