Ответ:
1)22.5
2)5
3)55.4
Пошаговое объяснение:1) 2.84*1.5+42.12-23.88=4.26+42.12-23.88=46.38-23.88=22.5
2)(9.86=2.1)*3.5-36.86=11.96*3.5-36.86=41.86-36.86=5
3)(103.92.-23.52)*0.75-2.8(10-8.25)=80.4*0.75-2.8*1.75=60.3-4.9=55.4
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Ответ:
1)22.5
2)5
3)55.4
Пошаговое объяснение:1) 2.84*1.5+42.12-23.88=4.26+42.12-23.88=46.38-23.88=22.5
2)(9.86=2.1)*3.5-36.86=11.96*3.5-36.86=41.86-36.86=5
3)(103.92.-23.52)*0.75-2.8(10-8.25)=80.4*0.75-2.8*1.75=60.3-4.9=55.4