Mary is 5 years older than Bob. If the sum of their ages is 39, write and solve an equation to find their ages

Question

Mary is 5 years older than Bob. If the sum of their ages is 39, write and solve an equation to find their ages

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Julia 1 week 2022-01-15T14:36:59+00:00 1 Answer 0 views 0

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    2022-01-15T14:38:18+00:00

    Answer:

    Bob is 17 years old

    Mary is 22 years old

    Step-by-step explanation:

    Mary’s current age: m

    Bob’s current age: b

    m + b = 39

    m = b + 5

    Substitute.

    b + 5 + b = 39

    2b + 5 = 39

    2b = 34

    b = 17

    m = 22

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45:7+7-4:2-5:5*4+35:2 =? ( )