Туристы на байдарке по течению плыли 2 туристы на байдарке по течению плыли 2 часа 24 минуты и против течения 48 минут. путь, пройденный байдаркой по течению , оказался на 18, 6 км больше , чем путь, пройденный против течения. найдите скорость байдарки в стоячей воде, если скорость течения 3 км/ч.

Туристы на байдарке плыли 2 часа 24мин= 2 ц 24/60=2 ц 2/5=  2, 4 ч. по течению реки 48 мин=0, 8 ч. против течения. скорость течения  3км/ч. скорость х км/ч - собственная скорость байдарки (х+3) км/ч - скорость по течению (х-3) км/ч - скорость против течения (х+3)*2,4   - путь по течению (х-3)*0,8   - путь против течения (х+3)*2,4-(х-3)*0,8 = 18,6   2,4х+7,2-0,8х+2,4=18,6 1,6х+9,6=18,6 1,6х=9 х=9: 16/10 х=5,625=5 ц 5/8 

По вертикали:

1. Произведение, состоящее из одинаковых множителей (степень) .

2. Какова степень одночлена 7а3b4с (восьмая) .

4. Показатель степени, который обычно не пишут (единица)

5. Слагаемые, отличающиеся только коэффициентами (подобные) .

6. “А ну-ка, отними! ” наоборот (сложение) .

7. Какова степень многочлена 2а6 + а – 1 – 3а4 + а7?

9. Число, при подстановке которого в уравнение, получается верное равенство (корень) .

10. Раздел математики (алгебра) .

По горизонтали:

3. Числовой множитель, стоящий перед буквенным выражением (коэффициент) .

8. Произведение чисел, переменных и степеней переменных (одночлен) .

11. Сумма одночленов (многочлен).

阿迪爾汗

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

are my grandparents. They are riding bikes.

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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.

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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.

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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.

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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.

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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.

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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