M = 6,2; n = 5; p = 9; r = 15,3
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1) (m-p)/n = (6,2-9)/5 = (-2,8)/5 = - 28/50 = - 0,56
2) (r - m) : n = (15,3 - 6,2) : 5 = 9,1 : 5 = 1,82
3) p/(n+m) = 9/(5+6,2) = 9/(11,2) = 90/112 = 45/56
Ответ:
( 754 * 7006 - 962 524) : 540 - 3008 : 47 + (500* 3050 - 5087)=1527849
1) 754 * 7006 = 5282524
2) 5282524 - 962 524 = 4320000
3) 3050 * 500 = 1525000
4 ) 1525000 - 5087 = 1519913
5 ) 4320000 : 540 = 8000
6 ) 3008 : 47 = 64
7 ) 8000-64 = 7936
8 ) 1519913 + 7936 = 1527849
- 5 + (х - 6) = - 15
- 5 + х - 6 = - 15
х = - 15 + 5 + 6
х = - 4
(×-80)*40=640
(×-80)=640÷40
(×-80)=16
×=80÷16
×=5
ответ=5