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Posted by on Friday, June 1, 2012 at 4:05am.

A carpenter wants to cut an 18-foot board into two pieces so that one piece is 3 feet shorter than twice the shorter piece. Where should he make the cut?

---?--- ft from one end

  • Math - , Friday, June 1, 2012 at 4:28am

    L = length of board piece

    a = length of first piece

    b = length of second ( shorter ) piece


    a = 2 b - 3


    L = 18 = a + b = 2 b - 3 + b = 3 b - 3


    3 b - 3 = 18 Add 3 to both sides

    3 b - 3 + 3 = 18 + 3

    3 b = 21 Divide both sides by 3

    3 b / 3 = 21 / 3

    b = 7 ft


    a = 2 b - 3

    a = 2 * 7 - 3 = 14 - 3 = 11 ft

  • Math - , Sunday, October 21, 2012 at 1:50pm

    a carpenter cut a 3- meter board into four pieces of equal length . how
    many centimeters long was each piece?

  • Math - , Sunday, May 1, 2016 at 2:50pm

    i need help with my homework

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