Ответы на вопрос:
А)5/8 ÷ 3/4 = 5/8 * 4/3 = 5/6,б)3 1/9 ÷ 2 11/12 = 28/9 ÷ 35/12 = 28/9 * 12/35 = 16/15 = 1 1/15,в) 6 ÷ 8/15 = 6/1 * 15/8 = 45/4 = 11 1/4.
решение:
р=9000
i1=0.05
n(25.03)=83
n(31.03)=90
i1=p*i1*[n(25.03) - n(31.03)]/360
i1=9000*0.05*(90-83)/360 = 8.7
i2=0.05
n(04.09)=246
n(26.09)=269
i1=p*i1*[n(04.09) - n(26.09)]/360
i1=9000*0.05*(269-246)/360 = 28.7
i = i1+i2 = 8.7+28.7 = 37.4
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