Предмет: Математика, автор: no00000pp

 Найдите по формуле S = t:
а) путь S, если  = 205 км/ч, t = 9 ч;
б) скорость , если S = 325 км, t = 65 ч.
2. Ширина прямоугольного участка земли 900 м, и она меньше длины на 90 м. Найдите площадь участка и выразите её в арах.
3. Ширина прямоугольного параллелепипеда 15 см, длина в 3 раза больше, а высота на 4 см меньше ширины. Найдите объём прямоугольного параллелепипеда.
4. Ширина прямоугольника 16 см. На сколько увеличится площадь этого прямоугольника, если его длину увеличить на 6 см?
Выразите:
А) в квадратных метрах: 6 га, 4 га, 11 а, 17 а, 2 га 11 соток
Б) в гектарах: 450000 м2, 43 км2 19 га, 4550 км2
В) в арах: 41 га, 4 га 6 а, 38600 м2, 61 км2 54 га
Г) в гектарах и арах: 9650 а, 415900 м2.
Выразите:
А) в кубических сантиметрах: 6 дм3, 4 дм3, 3 дм3 11 см2
Б) в кубических дециметрах: 1  м3 481 дм3, 1 м3 100 дм3, 44 м320 дм3.
В) в кубических метрах и дециметрах: 4401 дм3 , 1541 дм3 , 540800 см3
Г) в кубических миллиметрах: 1050 см3, 2110 см3

Ответы

Автор ответа: sofafo01
0

Ответ:

1) 1845

2) 5

3) 11475

Остальное незнаю как делать

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