Question

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Answer 1

Resposta:

                                           Regra de 3 simples

a) 2x = 32

x = $\frac{30}{2}$

x = 16

b) 2100 = 70x

x = $\frac{2100}{70}$

x = $\frac{210}{7}$

x = 30

c) 40 = 2x

x = $\frac{40}{2}$

x = 20

d) 6x = 240

x = $\frac{240}{6}$

x = 40

e) 4x = 24

x = $\frac{24}{4}$

x = 6

f) 35x = 105

x = $\frac{105}{35}$

x = 3