Question

determine o número q falta em cada sentença​

Answer 1

Resposta:

a)52.43+x=2257

2236+x=2257

x=2257-2236

x=21

b)x.32.4=580

128x=580

x=580/128

x=4,53125

c)75.28+15=x

2115=x

d)26.x+3=341

26x=341-3

26x=338

x=338/26

x=13

e)76.89+x=6724

6764+x=6724

x=6724-6764

x=-40

f)x.64.8=2560

512x=2560

x=2560/512

x=5

g)120.13+159=x

1560+159=x

x=1719

h)68.x+6=414

68x=414-6

68x=408

x=408/68

x=6