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Макс25032004
@Макс25032004
June 2022
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вычислите (-3/5+1/2-(-0,8))*(-0,12-(-3)+5 8/25)
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TigerYa
Verified answer
3/5= 6/10= 0,6
1/2=5/10= 0,5
5 8/25= 5 32/100= 5,32
(-3/5+1/2-(-0,8))*(-0,12-(-3)+5 8/25)
= ( -0,6+0,5+0,8)• (-0,12+3+ 5,32)=
(0,7)• (8,2)= 5,74
Или так
(-3/5+1/2-(-0,8))*(-0,12-(-3)+5 8/25)
= 5 37/50
1)) -3/5+ 1/2= -(3•2)/(5•2)+ (1•5)/(2•5)=
-6/10+ 5/10= -1/10= -0,1
2)) -0,1-(-0,8)= -0,1+0,8= 0,8-0,1= 0,7
3)) -0,12-(-3)= -0,12+ 3= 3-0,12=2,88
4)) 2,88+ 5 8/25= 2 88/100+ 5 8/25=
2 22/25+ 5 8/25= 7 30/25= 8 5/25= 8 1/5
5)) 0,7• 8 1/5= 7/10• (8•5+1)/5=
7/10• 41/5= 287/ 50= 5 37/50
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Thanks 4
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Answers & Comments
Verified answer
3/5= 6/10= 0,61/2=5/10= 0,5
5 8/25= 5 32/100= 5,32
(-3/5+1/2-(-0,8))*(-0,12-(-3)+5 8/25)
= ( -0,6+0,5+0,8)• (-0,12+3+ 5,32)=
(0,7)• (8,2)= 5,74
Или так
(-3/5+1/2-(-0,8))*(-0,12-(-3)+5 8/25)
= 5 37/50
1)) -3/5+ 1/2= -(3•2)/(5•2)+ (1•5)/(2•5)=
-6/10+ 5/10= -1/10= -0,1
2)) -0,1-(-0,8)= -0,1+0,8= 0,8-0,1= 0,7
3)) -0,12-(-3)= -0,12+ 3= 3-0,12=2,88
4)) 2,88+ 5 8/25= 2 88/100+ 5 8/25=
2 22/25+ 5 8/25= 7 30/25= 8 5/25= 8 1/5
5)) 0,7• 8 1/5= 7/10• (8•5+1)/5=
7/10• 41/5= 287/ 50= 5 37/50