Question

encontre o valor de x nas proporções:
a) x/3=10/6
b)x/4=91/52
c)x/7=18/21​

Answer 1

Resposta:

a)

$\frac{x}{3} = \frac{10}{6}$

$x.6 = 10.3$

$x.6 = 30$

$x = \frac{30}{6}$

$x = 5$

b)

$\frac{x}{4} = \frac{91}{52}$

$52x = 91.4$

$52x = 364$

$x = \frac{364}{52}$

$x = 7$

c)

$\frac{x}{7} = \frac{18}{21}$

$21x = 18.7$

$21x = 126$

$x = \frac{126}{21}$

$x = 6$