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Paul is 42 years old. the sum of the ages of paul and mary is 63 .how old is mary​

Answers

  • Réponse publiée par: tayis

    21 years old

    Step-by-step explanation:

    63= n + 42

    63 -42 =n

    21 = n

    checking:

    42 + 21 = 63 ( true)

  • Réponse publiée par: elaineeee

    21

    Step-by-step explanation:

    Because

    63-42

    equal 21

  • Réponse publiée par: shannel99

    answer:

    hi hi hi hi hi hi hi

    Step-by-step explanation:

  • Réponse publiée par: Axelamat

    60 biscuits

    Step-by-step explanation:

    30-20 = 10

    50 + 10 = 60

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Paul is 42 years old. the sum of the ages of paul and mary is 63 .how old is mary​...