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6 November, 14:28

Amanda's dad is twice as old as she is today. The sum of their ages is 66. Find the ages of Amanda and her dad.

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  1. 6 November, 14:46
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    Let amanda's age be x and her dad's age be y.

    Amanda's dad is twice as old as she, therefore 2x=y

    The sum of their ages is 66, therefore x+y=66

    x+y=66

    2x=y,

    substitute.

    2x+x=66

    3x=66

    Divide.

    x=22.

    plug it back in, 22+y=66, y=44.

    Amanda's age is 22 and her dad's age is 44.
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