Условие задания: 2 Б. За 2 кг картошки заплатили 42 руб. Сколько стоят 30 кг картошки? (Составь пропорцию для решения задачи, обозначив буквой k (руб.) стоимость 30 кг картофеля.) 2 42
Вычислите значения выражений! и решение! 1) 37624 м - 237 дм 4 см = ? 2) 7 га - 382 кв. м = ? 3) 38 куб. м - 95 л = ? 4) 360 ц - 654 кг = ? 5) 2 м 10 дм 3 см - 2 дм 10 см 3 мм1)237дм=23м70см. 37624м=37600м+24м. 24м-23м74см=1м-74см=100см-74см=26см. 37624м-237дм4см=37600м26см.3)7 га - 382 кв.м=69618кв.м4)38 куб.м -95 л =38*1000-95=37905л5)360 ц -654 кг =360*100=35346кг6)2 м 10 дм 3 см - 2 дм 10 см 3 мм= 2727 мм1.237дм=23м70см. 37624м=37600м+24м. 24м-23м74см=1м-74см=100см-74см=26см. 37624м-237дм4см=37600м26см.3.7 га - 382 кв.м=69618кв.м4.38 куб.м -95 л =38*1000-95=37905л5.360 ц -654 кг =360*100=35346кг6.2 м 10 дм 3 см - 2 дм 10 см 3 мм= 2727 мм
1)the two friends lived in liverpool, didn't they? 2)the boys didn't like doing sums, did they? 3)the river mersey was far busier in the old days, wasn't it? 4)the narrator's relatives had seen a lot of parts of the globe, hadn't they? 5)the boys were not teenagers at the time, were they? 6)the boys tried to plan their voyage, didn't they? 7)the boys didn't prepare food and drink for their voyage, did they? 8)the boys could easily get on board the ship, couldn't they? 9)the boys had to give themselves up after midge got sick, didn't they? 10)the narrator's parents didn't believe his story, did they?
Пошаговое объяснение:
2 кг - 42 руб
30 кг - х руб
х=42*30:2
х= 630 руб стоят 30 кг картошки