Question

calcule : a) 30% de 200, b) 2,5 de 800 c) 200% de 120 d) 30% de 40% de 1000 ... obg desde ja ... obs preciso da resolução

Answer 1

A)
$\frac{200}{x} \frac{100}{30}$
200·30=100x
6,000=100x
$\frac{6,000}{100}$=x
X=60

B)
$\frac{800}{X} \frac{100}{2,5}$
800·2,5=100X
2,000=100X
$\frac{2,000}{100}$=X
X=20

C)
$\frac{120}{X} \frac{100}{200}$
120·200=100X
24,000=100X
$\frac{24,000}{100}$=X
X=240

D)
$\frac{1000}{X} \frac{100}{40}$
1000·40=100X
40,000=100X
$\frac{40,000}{100}$=X
X=400
$\frac{400}{X} \frac{100}{30}$
400·30=100X
12,000=100X
$\frac{12,000}{100}$=X
X=120  30% DE 40% É 120


ESPERO TER AJUDADO =)