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winterblanco
23.10.2021 •
Mathematics
Tổng chi phí cho một quy trình sản xuất bằng 1.000 đô la cộng với hai lần số lượng đơn vị sản xuất. Giá trị trung bình và phương sai cho số lượng đơn vị sản xuất lần lượt là 500 và 900. Tìm giá trị trung bình và phương sai của tổng chi phí.
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Ответ:
She can either have 7 sweets or 17 sweets.
Step-by-step explanation:
Variable x = number of sweets Pat has
x < 20
Counting by 5's (5, 10, 15) that will result in 2 left over (5 + 2, 10 + 2, and 15 + 2). This leaves 3 possible options as to how many sweets Pat has: 7, 12, and 17.
Counting by 2's (2, 4, 6 . . . 18) that will result in 1 left over (6 + 1, 10 + 1, 16 + 1) This leaves 2 possible options, given the other numbers from counting by 5's were eliminated.: 7 and 17.