Answered

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Comprei 15 rolos para uma instalação elétrica gastei 3/8 de 1 rolo quantos trabalhos eu posso realizar com o material comprado?

Sagot :

fichoh

Responder:

40 instalações

Explicação passo a passo:

Rolos totais de instalações adquiridas = 15

Rolos usados ​​por instalação = 3/8 de um rolo

O número de instalações que os 15 rolos podem durar pode ser calculado assim:

1 instalação = 3/8 rolo

x instalações = 15 rolos

Multiplicação cruzada

3/8 x = 15

x = 15 ÷ 3/8

x = 15 * 8/3

x = 5 * 8

x = 40

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