Question

ПОМОГИТЕ СРОЧНО!!!!!!

1)найди  4/7 от значения выражения : (40*3+360):(2400:12-6*15+25*2)*(530-380)-170= _______________________________________________________

____________________________________________________________________

Ответ : ______________________________________________________________

 

Answer 1

(40*3+360):(2400:12-6*15+25*2)*(530-380)-170=280

      480                          160                        150

                    3                                     450

 

4/7 от 280

280:7*4=160

 

Answer 2

(40*3+360):(2400:12-6*15+25*2)*(530-380)-170= 480 : (200 - 90 +50) * (-20) = 480 / 160*(-20) = -60

 

 

4/7 = -60 * 4 / 7 = 233