Hector found twice as many seashells as his sister. Hector found 20 seashells. How many seashells did his sister find?

Question

Hector found twice as many seashells as
his sister. Hector found 20 seashells.
How many seashells did his sister find?
Write an equation to represent the
situation. Then solve the equation to
answer the question.

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Orla Orla 3 years 2021-09-05T04:02:29+00:00 1 Answers 0 views 0

Answers ( )

  1. Eirian
    0
    2021-09-05T04:03:56+00:00
    Reply

    Hector = 2s or h/2
    Sister = s

    Equation: h/2 = s

    Substitution: (20)/2 = s

    10 = s

    Hector’s sister found 10 seashells.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )