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14 November, 06:24

If you add natalie's age and fred's age, the result is 43. if you add fred's age to 44 times natalie's age, the result is 88. write and solve a system of equations to find how old fred and natalie are.

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  1. 14 November, 09:49
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    Let Natalie be x, and Fred, y.

    So based on 1st condition, we get

    x + y = 43 - Equation 1

    â' x = 43-y - Equation 2

    Now based on 2nd condition, we get

    44x+y=88

    Using x from Equation 2, we get

    44 (43-y) + y = 88

    â' 44x43 - 44y + y = 88

    â' 1892 - 44y + y = 88

    â' - 44y + y = 88 - 1892

    â' 43y = 1804

    â' y = 1804/43

    â' y = 41.95

    Using the value of y in Equation 2

    x = 43 - 41.95

    â' x = 1.05

    So Natalie is 1.05 yrs and Fred is 41.95 yrs old.
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