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27 June, 09:19

Ethan is 11 inches shorter than 3 times his little sister

Sheila's height. If Ethan is 79 inches tall, how tall is

Sheila?

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Answers (2)
  1. 27 June, 09:35
    0
    30"

    Step-by-step explanation:

    We know:

    E = 3*s - 11

    E = 79"

    Setting them both equal:

    79 = 3s - 11

    add 11 to both sides

    79 + 11 = 3s - 11 + 11

    Simplify

    90 = 3s

    divide both sides by 3

    90 / 3 = 3s / 3

    Simplify

    s = 30"
  2. 27 June, 09:45
    0
    The answer is 30!

    Step-by-step explanation: You take a calculator and add the fir
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