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DUJHGG
@DUJHGG
November 2019
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Comprei 10 frangos e 15 perus pela importância de R$400,00. Determine o preço de cada ave, sabendo que um frango e um peru custam juntos R$30,00
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arthurriquierip0vb0a
10 Frangos + 15 Perus = R$ 400
1 Frango + 1 Peru = R$ 30
1 Frango = R$ 30 - 1 Peru
10.(30 - 1P) + 15P = R$ 400
300 - 10P + 15P = R$ 400
5 P = 400 - 300
5 P = 100
P = 100/5
Peru = R$ 20
Frango = R$ 30 - 1.Peru
Frango = R$ 30 - R$ 20
Frango = R$ 10
Prova real:
10.F + 15.P = R$ 400
10.10 + 15.20 = R$ 400
100 + 300 = R$ 400
400 = R$ 400
2 votes
Thanks 2
marcelo612
F + P = 30
F = 30 - P
10F + 15P = 400
10( 30 - P ) + 15P = 400
300 - 10P + 15P = 400
5P = 400 - 300
5P = 100
P = 100 / 5
P = 20
F = 30 - 20
F = 10
Cada frango custa 10reais e cada peru custa 20 reais.
2 votes
Thanks 1
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Lista de comentários
1 Frango + 1 Peru = R$ 30
1 Frango = R$ 30 - 1 Peru
10.(30 - 1P) + 15P = R$ 400
300 - 10P + 15P = R$ 400
5 P = 400 - 300
5 P = 100
P = 100/5
Peru = R$ 20
Frango = R$ 30 - 1.Peru
Frango = R$ 30 - R$ 20
Frango = R$ 10
Prova real:
10.F + 15.P = R$ 400
10.10 + 15.20 = R$ 400
100 + 300 = R$ 400
400 = R$ 400
F = 30 - P
10F + 15P = 400
10( 30 - P ) + 15P = 400
300 - 10P + 15P = 400
5P = 400 - 300
5P = 100
P = 100 / 5
P = 20
F = 30 - 20
F = 10
Cada frango custa 10reais e cada peru custa 20 reais.