yvonne is 3 years younger than her sister.the sum of thier ages is 25 years.​

Question

yvonne is 3 years younger than her sister.the sum of thier ages is 25 years.​

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Thu Thảo 3 years 2021-08-24T22:04:03+00:00 2 Answers 26 views 0

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  1. kimchi2
    0
    2021-08-24T22:05:03+00:00
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    Guessing you need to know how old each girl is. Yvonne is 11, her sister is 14.

    s = sister
    y = Yvonne
    Yvonne is 3 years younger than her sister
    y = s – 3
    s + y = 25

    So we’ll substitute the first equation into the second:

    s + (s – 3) = 25 and solve for a numerical value for s
    2s – 3 = 25
    Add 3 to both sides:
    2s = 28
    s = 14

    Yvonne is 3 years younger, so she is 11.

  2. thucuc
    0
    2021-08-24T22:05:45+00:00
    Reply

    Answer:

    mk?

    Step-by-step explanation:

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