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mashylya10
@mashylya10
July 2022
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2. Решите уравнение:
a) 2⁄7 Х = 3;
3. Вычислите значение выражения::
( 6,7 * 1,3 : 0, 2 - 3,4)⁄(8 7⁄9 - 3)
4. Вычислите значение выражения:
( 2⁄3 + (3⁄4)2 + 1⁄3) : 1⁄4
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Calibri39
1)2/7x=3
x=3:2/7
x=10 1/2
2)
(8.71:0.2-3.4)(5 7/9)=(43.55-3.4)(5 7/9)=(40.15)7 7/9)=40 3/20*5 7/9=10439/45=231 4/45
3)=2/3+9/16+1/3 :1/4=1 9/16 / 1/4=6 1/4
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Answers & Comments
x=3:2/7
x=10 1/2
2)
(8.71:0.2-3.4)(5 7/9)=(43.55-3.4)(5 7/9)=(40.15)7 7/9)=40 3/20*5 7/9=10439/45=231 4/45
3)=2/3+9/16+1/3 :1/4=1 9/16 / 1/4=6 1/4