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two numbers have the sum of 54 and a product of 200. What are the two numbers?

NOTE: this is a word problem, this should be answered in complete solution thank you :)

9 Answers

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  • 9 years ago
    Favorite Answer

    x + y = 54

    xy = 200

    y = 54 - x

    x(54 - x) = 200

    54x - x^2 = 200

    x^2 - 54x + 200 = 0

    x = (54 +/- sqrt(2916 - 800)) / 2

    x = (54 +/- sqrt(2116)) / 2

    x = (54 +/- 46) / 2

    x = 4 and x = 50

    4 + y = 54

    y = 50

    50 + y = 54

    y = 4

    So it's 50 & 4.

    I hope this information was very helpful.

  • 9 years ago

    a + b = 54

    a x b = 200

    b = 200/a

    Combine the equations

    a + 200/a = 54

    a^2 + 200 = 54a

    a^2 - 54a + 200 = 0

    (a - 50) (a - 4) = 0

    So a must be 50 or 4

    a + b = 54

    if a is 50 then b is 4

    is a is 4 then b is 50

    So the numbers are 4 and 50

  • 9 years ago

    50 + 4 =54

    50 x 4 =54

  • ?
    Lv 7
    9 years ago

    50+4 = 54

    50*4 = 200

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  • 9 years ago

    The two numbers are 50 and 4

    50+4 = 54

    50*4 = 200

    hope this helps :)

  • Sonya
    Lv 5
    9 years ago

    x+y=54----(1)

    x*y=200----(2)

    From (1), x=54-y

    Then (2) becomes, (54-y)y=200

    54y-y^2=200

    y^2-54y+200=0

    (y-50)(y-4)=0

    ie, y=50 or 4

    Put these y in (1)

    if y=50 then x+50=54==> x=4

    if y=4 then x+4=54==> x=50

    So the numbers are 50 and 4

  • 9 years ago

    50+4=54 and 50x4=200

  • 9 years ago

    x + y = 54

    xy = 200

    solve simultaneously (substitution is the best method here)

    You will get, as stated above, 50 and 4.

  • ?
    Lv 6
    9 years ago

    x^2-54x+200=0

    x's=[27+&-(27^2-200)^1/2]=50 & 4

    God bless you.

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