Post a New Question

math algebra

posted by on .

the area of a rectangular garden is 120 square meters. the width is 3 meters longer than 1/3 of the length. find the legth and the width of the garden.

  • math algebra - ,

    length --- x
    width ---- x/3 + 3

    x(x/3 + 3) = 120
    x^2/3 + 3x - 120 = 0
    x^2 + 9x - 360 = 0
    (x-15)(x+24) = 0
    x = 15 or x = -24, but x > 0

    the length is 15
    width = 15/3 + 3 or 8

    check (8)(15) = 120
    3 more than 1/3 of 15 gives us 8

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question