Question

Решите аожалуйста
1) (30,8+5,6*(-8,4))/(-0,28)
2) (-250)*(-159,8/4,7+29,5)

Answer 1

1)
$frac{(30.8 + 5.6 )times ( - 8.4)}{ - 0.28} = 30.8 + 5.6 times ( (- 8.4 )div ( - 0.28)) = 30.8 + 5.6 times ( (- 840) div (- 28)) = 36.4 times 30 = 1092$
2)
$frac{ - 250 times - 159.8}{4.7} + 29.5 = frac{ - 250 times - 1598}{47} + 29.5 = frac{399500}{47} + 29.5 = 8500 + 29.5 = 8529.5$