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Thread: Algebra 2 word problem

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    Epic's Avatar
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    Algebra 2 word problem

    Define the variable. Write and solve equation.

    John's mother is 8 more than twice his age. His father is 3 years older than his mother. If all 3 family members have lived 94 years, how old is each family member ?

    Rep will be given IF explained how you got the answer.

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    Frank12 (08-21-2012)

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    M = 2J + 8
    F = M + 3
    J + M + F = 94

    J + (2J + 8) + (2J + 8 + 3) = 94

    5J + 19 = 94
    5J =75

    J = 15
    M = 38
    F = 41

    J is John
    M is Mother
    F is Dad

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    Epic (08-21-2012)

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    John=x
    Jm=2x+8
    Jf=2x+11
    Jf+Jm+J=5x+19
    5x+19=94,
    94-19=75, and 75/5 is 15.
    John=15
    John's mother=38
    Johns father=41
    38+15+41=94
    Edit-Frank beat me to it

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    Epic (08-21-2012)

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