Question

05- Calcule o valor de x nas proporções abaixo:


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Answer 1

Explicação passo-a-passo:

a)

$\sf \dfrac{x}{10}=\dfrac{6}{5}$

$\sf 5x=10\cdot6$

$\sf 5x=60$

$\sf x=\dfrac{60}{5}$

$\sf \red{x=12}$

b)

$\sf \dfrac{3}{15}=\dfrac{x}{5}$

$\sf 15x=3\cdot5$

$\sf 15x=15$

$\sf x=\dfrac{15}{15}$

$\sf \red{x=1}$

Answer 2

Oie, Td Bom?!

a)

x/10 = 6/5

5x = 6 . 10

5x = 60

x = 60/5

x = 12

b)

3/15 = x/5

[3 ÷ 3]/[15 ÷ 3] = x/5

1/5 = x/5

1 = x

x = 1

Att. Makaveli1996