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Mathematics, 22.07.2021 09:10 zahraa244
Hai máy giặt cùng giặt một lượng quần áo trong 16 giờ thì hoàn thành. Nếu máy
một giặt trong 3 giờ và máy hai giặt trong 6 giờ, thì chúng giặt được 25% lượng quần áo
đó. Hỏi mỗi máy giặt riêng lượng quần áo đó thì mất thời gian bao lâu?
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Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?
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The distribution of a sample of the outside diameters of pvc pipes approximates a symmetrical, bell-shaped distribution. the arithmetic mean is 14.0 inches, and the standard deviation is 0.1 inches. about 68% of the outside diameters lie between what two amounts?
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Hai máy giặt cùng giặt một lượng quần áo trong 16 giờ thì hoàn thành. Nếu máy
một giặt trong 3 giờ...
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