Explicação passo a passo:
5 100 m² >>>>>>>>>>>>>>>>>>>>3 hs
11 900 m² >>>>>>>>>>>>>>>>>>> x hs
5100/11900 = 3/x
em cruz
5100 * x ´= 11 900 * 3
5 100x =35 700
x = 35 700/ 5100
x =7 hs >>>>>>>>>>>>resposta c
Resposta: Alternativa C)
Regra de três
x 11900
3 5100
x*5100=3*11900
5100x=35700
x=35700/5100
x=7
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Explicação passo a passo:
5 100 m² >>>>>>>>>>>>>>>>>>>>3 hs
11 900 m² >>>>>>>>>>>>>>>>>>> x hs
5100/11900 = 3/x
em cruz
5100 * x ´= 11 900 * 3
5 100x =35 700
x = 35 700/ 5100
x =7 hs >>>>>>>>>>>>resposta c
Resposta: Alternativa C)
Explicação passo a passo:
Regra de três
x 11900
3 5100
x*5100=3*11900
5100x=35700
x=35700/5100
x=7