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[tex] - 6.6 \div (2 \frac{4}{7} + \frac{1}{7} \times ( - 1.5)) - 2 \frac{17}{85} [/tex]
[tex] - 6.6 \div (2 \frac{4}{7} + \frac{1}{7} \times ( - 1.5)) - 2 \frac{17}{85} [/tex]
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Ответ:
Пошаговое объяснение:
=6,6:(2⁴/₇+(1/7)*(-1,5))-2¹⁷/₈₅
1. (1/7)*(-1,5)=(1/7)*(-3/2)=-3/14.
2. 2⁴/₇+(-3/14)=(18/7)-(3/14)=(18*2-3)/14=(36-3)/14=33/14.
3. -6,6:(33/14)=(-6³/₅)*(14/33)=(-33/5)*(14/33)=-33*14/(5*33)=-14/5=-2,8.
4. -2,8-2¹⁷/₈₅=-2,8-2¹/₅=-2,8-2,2=-5.