Question

calcule o valor de x

a)2/3 = 8/x


b) 2/360 = 10/x


Quero. os. calculos

Answer 1

2/3=8/x
2x=24
x=34/2
x=12
2/360=10/x
2x=3600
x3600/2
x=1800

Answer 2

a) 

$\displaystyle \mathsf{\frac{2}{3} = \frac{8}x{}}\\ \\ \displaystyle \mathsf{2.x = 3.8}\\ \displaystyle \mathsf{2x = 24}\\ \\ \displaystyle \mathsf{x = \frac{24}{2}}\\ \\ \displaystyle \mathsf{x = 12}$

b)

$\displaystyle \mathsf{\frac{2}{360} = \frac{10}{x}}\\ \\ \displaystyle \mathsf{2.x = 360.10}\\ \displaystyle \mathsf{2x = 3600}\\ \\ \displaystyle \mathsf{x = \frac{3600}{2}}\\ \\ \displaystyle \mathsf{x = 1800}$