o figure out a special number, Tammi’s mother was supposed to double her age and then add 4. Instead, Tammi’s mother added 4 to her age and

Question

o figure out a special number, Tammi’s mother was supposed to double her age and then add 4. Instead, Tammi’s mother added 4 to her age and then doubled that number. Tammi’s mother thought the special number was 80. What was the special number supposed to be?

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Diễm Thu 2 weeks 2021-08-31T14:57:26+00:00 2 Answers 0 views 0

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    0
    2021-08-31T14:58:57+00:00

    9514 1404 393

    Answer:

      76

    Step-by-step explanation:

    For age ‘a’, the special number was supposed to be …

      2a +4

    Tammi’s mother actually calculated it as …

      2(a +4) = 2a +8

    a value that is (2a+8) -(2a+4) = 4 more than it was supposed to be.

    The special number was supposed to be 80 -4 = 76.

    0
    2021-08-31T14:59:04+00:00

    Answer:

    40

    her age was 36 she added 4nwhich made 40 then doubles makesn80

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