Question

Em um evento de compra e venda da sua escola, Laura vendeu suas 20 bolinhas de gude entre três amigos por R$ 10,00. Arnaldo pagou R$ 2,00, Bernardo pagou R$ 5,00 e Carlos pagou R$ 3,00.

Uma igualdade que expressa corretamente a divisão das bolinhas em partes proporcionais aos valores pagos por Arnaldo (A), Bernardo (B) e Carlos (C) é


(A)
MathML (base64):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.


(B)
MathML (base64):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.


(C)
MathML (base64):PG1hdGg+CiAgICA8bXJvdz4KICAgICAgICA8bXJvdz4KICAgICAgICAgICAgPG1mcmFjPgogICAgICAgICAgICAgICAgPG1yb3c+CiAgICAgICAgICAgICAgICAgICAgPG1uPjIwPC9tbj4KICAgICAgICAgICAgICAgIDwvbXJvdz4KICAgICAgICAgICAgICAgIDxtcm93PgogICAgICAgICAgICAgICAgICAgIDxtbj4xMDwvbW4+CiAgICAgICAgICAgICAgICA8L21yb3c+CiAgICAgICAgICAgIDwvbWZyYWM+CiAgICAgICAgICAgIDxtbz49PC9tbz4KICAgICAgICAgICAgPG1mcmFjPgogICAgICAgICAgICAgICAgPG10ZXh0PkE8L210ZXh0PgogICAgICAgICAgICAgICAgPG1uPjU8L21uPgogICAgICAgICAgICA8L21mcmFjPgogICAgICAgICAgICA8bW8+PTwvbW8+CiAgICAgICAgICAgIDxtZnJhYz4KICAgICAgICAgICAgICAgIDxtdGV4dD5CPC9tdGV4dD4KICAgICAgICAgICAgICAgIDxtbj4yPC9tbj4KICAgICAgICAgICAgPC9tZnJhYz4KICAgICAgICAgICAgPG1vPj08L21vPgogICAgICAgICAgICA8bWZyYWM+CiAgICAgICAgICAgICAgICA8bXRleHQ+QzwvbXRleHQ+CiAgICAgICAgICAgICAgICA8bW4+MzwvbW4+CiAgICAgICAgICAgIDwvbWZyYWM+CiAgICAgICAgPC9tcm93PgogICAgPC9tcm93PgogICAgPG1yb3c+CiAgICA8L21yb3c+CjwvbWF0aD4=.


(D)
MathML (base64):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.

Answer 1

Resposta:

10/20 = A/2 = B/5 = C/3

Answer 2

Resposta:

10/20 = A/2 = B/5 = C/3

Explicação passo-a-passo: