а)60•0,1=6. 100%-10%=90%
60-6=54. 60•0,9=54
б)500•0,28=360 100%-28%=72%
500-140=360 500•0,72=360
Ответ:
а)60*0,1=6
60-6=54
б)500*0,28=140
500-140=360
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а)60•0,1=6. 100%-10%=90%
60-6=54. 60•0,9=54
б)500•0,28=360 100%-28%=72%
500-140=360 500•0,72=360
Ответ:
а)60*0,1=6
60-6=54
б)500*0,28=140
500-140=360