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Artem13518
Artem13518
29.09.2022 18:23 •  Алгебра

Замените данные рациональные числа десятичными дробями. бесконечные дроби запишите с указанием периода. 1)1/2 2)1/4 3)3/4 4)1/5 5)2/5 6)3/5 7)4/5 8)1/8 9)3/8 10)1/3 11)2/3 12)1/6

👇
Ответ:
мишка4543
мишка4543
29.09.2022

1) 1/2=0.5

2)1/4=0.25

3)3/4=0.75

4)1/5=0.2

5)2/5=0.4

6)3/5=0.6

7)4/5=0.8

8) 1/8=0.125

9)3/8=0.375

10)1/3=0.(3)

11) 2/3=0.(6)

12) 1/6=0.1(6)

4,8(45 оценок)
Ответ:
12VikaSmirnova34
12VikaSmirnova34
29.09.2022

1) 0.5

2) 0.25

3) 0.75

4) 0.2

5) 0.4

6) 0.6

7) 0.8

8) 0.125

9) 0.375

10) 0.333333333333 

11) 0.666666666666

12) 0.166666666666 

4,7(30 оценок)
Открыть все ответы
Ответ:
Gulya55555
Gulya55555
29.09.2022
Весь путь S
время в пути пешехода (t), время в пути велосипедиста (t-2)
путь до места встречи (S1), вторая часть пути (S2)
S = S1 + S2
скорости велосипедиста и пешехода (vv) и (vp)
S1 = vv * (4/3)
S2 = vp * (4/3)
S = (4/3) * (vv + vp)
S = t * vp
S = (t-2) * vv
система
(4/3) * (vv + vp) = t * vp
t * vp = (t-2) * vv

4*vv = 3 * t * vp - 4*vp
4 * t * vp / (t-2) = (3*t - 4) * vp
4*t = (3*t - 4) * (t-2)
4*t = 3*t*t - 10*t + 8
3*t*t - 14*t + 8 = 0     D = 14*14 - 4*3*8 = 4*(49-24) = 10*10
t(1;2) = (14 +-10) / 6 = (7 +- 5) / 3
t = 4
t = 2/3 часа -- 40 минут - это меньше, чем 1 час 20 минут))) не является решением
ответ: 4 часа шел пешеход, 2 часа ехал велосипедист.
4,6(51 оценок)
Ответ:
nikitaaleksandrov
nikitaaleksandrov
29.09.2022

阿迪爾汗

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are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

is my mother. She has baked a delicious strawberry pie.

are my grandparents. They are riding bikes.

is our house. I can see it from here.

are my parents. My Mom’s name is Ann and my father’s name is Tom

4,4(29 оценок)
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