1) -1,5+(1,6-3,1) = -3
2) (-81+24)-(0,7-5,4) = 15.9-4,7 = 11,2
Делаю по формуле, на примере первого: х×1%/100%=3 тогда 3×100%/1%=300
1 стоблик:
3×100%/1%=300
6×100%/6%=100
7×100%/10%=70
21×100%/7%=300
36×100%/20%=180
70×100%/30%=200
80×100%/25%=320
1,2×100%/4%=30
6,5×100%/2%=325
35×100%/14%=250
Второй столбик:
45×100%/18=250
11×100%/55%=20
56×100%/28%=200
76×100%/19%=400
8,1×100%/27%=30
3,6×100%/15%=24
2,4×100%/80%=3
4×100%/16%=25
3,4×100%/17%=20
15×100%/3%=500
3,2×100%/16%=20
11×100%/22%=50
1,8×100%/30%=6
90×100%/45%=200
220×100%/55%=400
7×100%/56%=12,5
66×100%/33%=200
72×100%/12=600
/ Это деление
Делаю по формуле, на примере первого: х×1%/100%=3 тогда 3×100%/1%=300
1 стоблик:
3×100%/1%=300
6×100%/6%=100
7×100%/10%=70
21×100%/7%=300
36×100%/20%=180
70×100%/30%=200
80×100%/25%=320
1,2×100%/4%=30
6,5×100%/2%=325
35×100%/14%=250
Второй столбик:
45×100%/18=250
11×100%/55%=20
56×100%/28%=200
76×100%/19%=400
8,1×100%/27%=30
3,6×100%/15%=24
2,4×100%/80%=3
4×100%/16%=25
3,4×100%/17%=20
15×100%/3%=500
3,2×100%/16%=20
11×100%/22%=50
1,8×100%/30%=6
90×100%/45%=200
220×100%/55%=400
7×100%/56%=12,5
66×100%/33%=200
72×100%/12=600
/ Это деление
Пошаговое объяснение:
1) 1,5 + (1,6 - 3,1) = 1,5 - 1,5 = 0
2) (-8,1 + 24) - (0,7 - (-5,4)) = 15,9 - 6,1 = 9,8