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22 January, 21:06

Sharla is 8 year older than her sister, patricia. The sum of their ages is 102. Find their ages.

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Answers (2)
  1. 22 January, 23:46
    0
    Patricia is 47 years old

    Sharla is 55 years old

    Step-by-step explanation:

    Rewrite the first sentence as an equation: (S = Sharla) (P = Patricia)

    S=P+8

    Rewrite the second sentence as an equation:

    S+P=102

    1) Substitute P+8 as Sharla in the second equation:

    P+8+P=102

    2) Combine alike terms:

    2P+8=102

    3) Subtract 8 from both sides:

    2P=94

    4) Divide both sides by 2:

    P=47

    5) Substitute 47 as P in the First equation:

    S=47+8

    6) Solve:

    S=55
  2. 22 January, 23:49
    0
    Sharla's age: 55

    Patricia's age: 47

    Step-by-step explanation:

    Let p represent patricia age.

    p + (p+8) = 102

    If we combine like terms, it will end up like this:

    2p+8=102

    We have to subtract 8 from both sides.

    2p=94

    We have to divide 2 from both sides.

    p=47

    Since Patrica's age is 47, and we already know that Sharla is 8 years older than Patrica, Sharla's age is 47+8, which is 55.

    Now, we can check our work. Does 47+55=100? Yes.
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