Question

Calcule
a) 17% de 300
b) 34% de 2500
c)22,5% de 640​

Answer 1

A) 300x17/100=3x17=51

B) 34/100x2500=34x25=850

C)22,5/100x640=144

Answer 2

Oi....

a) 17 % de 300

100%-------300

17%----------x

100.x = 17 . 300

100x = 5100

x = 5100/100

x = 51

b) 34% de 2500

100%------------2500

34%----------------x

100.x = 34.2500

100x = 85000

x = 85000/100

x = 850

c) 22,5% de 640

100%------------650

22,5%-------------x

100.x = 22,5.650

100x = 14625

x = 14625/100

x = 146,25

Espero ter ajudado