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Can sums all rows equal 15 when using 3 rows of 3 and making the diagonal rows also equal 15 using 1 through 9 only once?
2 7 6 9 5 1 4 3 8
All the ways to arrange 18 chairs in equal rows?
18 Chairs into equal rows - 6 x 3 2 x 9 18 x 1
How does knowing ways to arrange 18 chairs in equal rows help you find the factors of 18?
The number of rows and the number of chars in that row give you the factor pairs of 18. If you list the number of rows when the 18 chairs can be arranged in rows with an equal number in each row, then this list is the factors of 18. 18 chairs can only be arranged in: 1 row of 18 chairs (1 × 18 = 18) 2 rows of 9 chairs (2 × 9 = 18) 3 rows of 6 chairs (3 × 6 = 18) 6 rows of 3 chairs (6 × 3 = 18) 9 rows of 2 chairs (9 × 2 = 18) 18 rows of 1 chair (18 × 1 = 18) The factors of 18 are thus: 1, 2, 3, 6, 9, 18.
9 times what equal 7?
To find out what number multiplied by 9 equals 7, you need to divide 7 by 9. Therefore, 7 ÷ 9 is approximately equal to 0.7778. So, 9 times 0.7778 equals 7.
The product of 7 and b is equal to 63?
63 / 7 = 9. Therefore b = 9
