Ответ:
1.(91,3+2,16:0,8)-90×0,6=148
1)2,16:0,8=2,7
2)91,3+2,7=94
3)90×0,6=54
4)94+54=148
(98,4+2,52:0,7)-80×0,4=70
1)2,52:0,7=3,6
2)98,4+3,6=102
3)80×0,4=32
4)102-32=70
2.(1,4х+70у)+2х×0,1
(1,4×1+70×0,1)+2×1×0,1=(1,4+7)+0,2=8,4+0,2=8,6
6х×0,3+4×(1,3х+20у)
6×1×0,3+4×(1,3×1+20×0,1)=1,8+4×(1,3+2)=5,8×3,3=19,14
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Answers & Comments
Ответ:
1.(91,3+2,16:0,8)-90×0,6=148
1)2,16:0,8=2,7
2)91,3+2,7=94
3)90×0,6=54
4)94+54=148
(98,4+2,52:0,7)-80×0,4=70
1)2,52:0,7=3,6
2)98,4+3,6=102
3)80×0,4=32
4)102-32=70
2.(1,4х+70у)+2х×0,1
(1,4×1+70×0,1)+2×1×0,1=(1,4+7)+0,2=8,4+0,2=8,6
6х×0,3+4×(1,3х+20у)
6×1×0,3+4×(1,3×1+20×0,1)=1,8+4×(1,3+2)=5,8×3,3=19,14