Question

2)CALCULE
A)30%DE1500
B)12%DE 120
C)27%DE900
D)557%DE300
E)98%DE450​

Answer 1

Multiplicando cruzado:

A)30% DE 1500

1500 -------- 100¨%

  x    --------   30%

100x = 45000

x= 45000/100

x = 450

B)12% DE  120

120 --------- 100%

 x   ----------  12%

100x = 1440

x= 1440/100

x = 14,4

C)27% DE 900

900 ------- 100%

  x   ---------  27%

100x = 24300

x = 24300/100

x = 243

D)55% DE 300

300 ------ 100%

  x   -------  55%

100x = 16500

x = 16500/100

x = 165

E)98%DE 450​

450 ---------- 100%

  x  ---------- 98%

100x= 44100

x = 44100/100

x = 441

Bons estudos ;)

Anjinha.

Answer 2

Resposta:

a) 450

b) 14,4

c) 243

d) 1671

e) 441

Explicação passo-a-passo:

1500 x 0,3 = 450

120 x 0,12 = 14,4

900 x 0,27 = 243

300 x 5,57 = 1671

450 x 0,98 = 441