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Kristinafjxsjcjd
@Kristinafjxsjcjd
September 2021
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ЛЮДИ ДОБРЫЕ ПОМОГИТЕ ТЕМУ НЕ ПОНЯЛА !!ИДУ НА 5!!ПОМОГИТЕ
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ryazanova1952
1). (4,08:(-1,7)-0,6):0.5*(-0,01)=(-2,4-0,6):0,5*(-0,01)=(-3):0,5*(-0,01)=
-6*(-0,01)= 0,06
2). (0,2-7/15)*(-5/8) - (-5/12-0,75):2 1/3=(1/5-7/15)*(-5/8)-(-5/12-3/4):2 1/3=
(3/15-7/15)*(-5/8)-(-5/12-9/12):2 1/3=(-4/15)*(-5/8)-(-14/12):2 1/3=
20/120-(-7/6):7/3=6-(-1/2)=6+1/2=6 1/2
3). 3 18/64=3, 28125=3,281
4). (3х+12)*(5х+0,75)=0, 3х+12=0, 3х= -12, х = -4,
5х+0,75=0, 5х=-0,75, х= -0,15 Х= (-4, -0,75)
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Answers & Comments
-6*(-0,01)= 0,06
2). (0,2-7/15)*(-5/8) - (-5/12-0,75):2 1/3=(1/5-7/15)*(-5/8)-(-5/12-3/4):2 1/3=
(3/15-7/15)*(-5/8)-(-5/12-9/12):2 1/3=(-4/15)*(-5/8)-(-14/12):2 1/3=
20/120-(-7/6):7/3=6-(-1/2)=6+1/2=6 1/2
3). 3 18/64=3, 28125=3,281
4). (3х+12)*(5х+0,75)=0, 3х+12=0, 3х= -12, х = -4,
5х+0,75=0, 5х=-0,75, х= -0,15 Х= (-4, -0,75)