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Tailany2015
@Tailany2015
July 2022
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um carro gasta 9 litros de gasolina ao rodar 100km se mantiver sempre esse consumo,quarto gastará
a:em 1000km?
b:em 10km?
c:em 1 km?
d:em 20 km?
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PapaiSabe
Vamos usar as regrinhas de 3, que é bem simples e muito útil:
Se em 100 km se consome 9 litros de gasolina:
a) 100 km = 9 litros
1000 km = x
100x = 9×1000
100x = 9000
x = 9000 ÷ 100
x = 90 litros
b) 100 km = 9 litros
10 km = x
100x = 9 × 10
100x = 90
x = 90 ÷ 100
x = 0,9 litros
c) 100 km = 9 litros
1 km = x
100x = 9 × 1
100x = 9
x = 9 ÷ 100
x = 0,09 litros
d) 100 km = 9 litros
20 km = x
100x = 9 × 20
100x = 180
x = 180 ÷ 100
x = 1,8 litros
78 votes
Thanks 172
brubsbarros
Regra de Três Simples , apenas aplica ela.
Bons estudos :)
a)
=
= 90 Litros
b)
=
= 0,9 Litros
c )
=
= 0,09 Litros
d)
=
= 1,8 Litros
19 votes
Thanks 42
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Lista de comentários
Se em 100 km se consome 9 litros de gasolina:
a) 100 km = 9 litros
1000 km = x
100x = 9×1000
100x = 9000
x = 9000 ÷ 100
x = 90 litros
b) 100 km = 9 litros
10 km = x
100x = 9 × 10
100x = 90
x = 90 ÷ 100
x = 0,9 litros
c) 100 km = 9 litros
1 km = x
100x = 9 × 1
100x = 9
x = 9 ÷ 100
x = 0,09 litros
d) 100 km = 9 litros
20 km = x
100x = 9 × 20
100x = 180
x = 180 ÷ 100
x = 1,8 litros
Bons estudos :)
a) = = 90 Litros
b) = = 0,9 Litros
c ) = = 0,09 Litros
d) = = 1,8 Litros