You, can't.
Most mathematics courses are designed to ease the student from concrete to abstract thought. If you can visualize chairs in rows, then you can think of those groupings of chairs as rectangles, then you can think of the numbers associated with them by themselves. You can arrange 18 chairs in one row of 18, two rows of 9 and three rows of 6. Those are the factor pairs of 18.
If you are Canadian (no joke), there are 618(101559956668416) ways. If you are american, there are 518(3814697265652) ways. Hope this helps!
1 row of 180 - 2 rows of 90 - 3 rows of 60 - 4 rows of 45 - 5 rows of 36 - 6 rows of 30 - 9 rows of 20 - 10 rows of 18 - 12 rows of 15 - 15 rows of 12 - 18 rows of 10 - 20 rows of 9 - 30 rows of 6 - 36 rows of 5 - 45 rows of 4 - 60 rows of 3 - 90 rows of 2 - 180 rows of 1 - total of 18 ways within the limits of the question
55, 51, 11
3 hours
18
It's a concrete way to visualize an abstract concept. If you can arrange the chairs (or blocks or stones or any other items) in even rows, those dimensions are factors. You will find you will be able to arrange them in 2 rows of 9 and 3 rows of 6. You will not be able to arrange them in rows of 4 or 5 without having some left over. The factors of 18 are 1, 2, 3, 6, 9 and 18.
Of course, it doesn't have to be chairs. Some people find that visualizing objects is helpful in manipulating abstract things like numbers. If you can arrange the chairs in rectangles with no stray chairs left over, you will find that the dimensions of the rectangles correspond to the factors. 1 x 18 2 x 9 3 x 6
18 Chairs into equal rows - 6 x 3 2 x 9 18 x 1
No, this is impossible. 6 rows of plates with three plates in each row makes the plate total 18. Area=length times width Area= 6 x 3= 18 plates
Of course. You have a choice of several different lovely arrangements:18 rows with 1 in each row9 rows with 2 in each row6 rows with 3 in each row
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.
The horizontal rows are called periods, there are 7. The vertical rows are groups and there are 18.
You can have: 1 row of 36 2 rows of 18 3 rows of 12 4 rows of 9 or 6 rows of 6, so in total there are 5 ways.
Most mathematics courses are designed to ease the student from concrete to abstract thought. If you can visualize chairs in rows, then you can think of those groupings of chairs as rectangles, then you can think of the numbers associated with them by themselves. You can arrange 18 chairs in one row of 18, two rows of 9 and three rows of 6. Those are the factor pairs of 18.
Think of the chairs as arrays. The dimensions of the arrays give you the factors of 18.
2 rows of 18 squares3 rows of 12 squares4 rows of 9 squares6 rows of 6 squares9 rows of 4 squares12 rows of 3 squares18 rows of 2 squares36 rows of 1 squareI would not count "1 row of 36 squares", because you only have a single row that cannot equal another row (there is only one rowafter all). If this is for homework, I would state your reasoning for excluding (or including) that set. Count all the options up, and you have 8 different ways you can arrange the rows with the exclusion.