Question

2) Determine o valor do X

a)
$\frac{x}{5} = \frac{21}{35}$
b)
$\frac{10}{7} = \frac{50}{x}$
c)
$\frac{1}{7} = \frac{x - 6}{49}$
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Answer 1

Explicação passo-a-passo:

a)

$\frac{x}{5} = \frac{21}{35}$

35x=21×5

35x=105

x=105÷35

x=5

b)

$\frac{10}{7} = \frac{50}{x}$

10x=7×50

10x=350

x=350÷10

x=35

c)

$\frac{1}{7} = \frac{x - 6}{49}$

7.x-6

7x-6

1x=49

x=49÷1

x=49