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8 votes
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A tile pattern has 10 tiles in Figure 2 and increases by 2 tiles for each figure. Find a rule for this pattern then determine how many tiles are in Figure 100. Pls help. =_=

User Alex Lynch
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2 Answers

23 votes
23 votes

Final answer:

The rule for the pattern of tile increase is T(n) = 8 + (n-1)*2, where n is the figure number. By applying this rule, Figure 100 has 206 tiles.

Step-by-step explanation:

A rule for a tile pattern where the number of tiles increases by a constant amount for each subsequent figure. Given that there are 10 tiles in Figure 2, and it increases by 2 tiles for each next figure, we can deduce that each figure number corresponds to a certain number of tiles by following a linear pattern. The rule for the pattern is to start with 8 tiles for Figure 1 (since Figure 2 has 10, and we're adding 2 for each next figure), and add 2 tiles for every next figure number. To express this as a formula, we can use the formula for a linear sequence: T(n) = a + (n-1)d, where T(n) is the number of tiles in Figure n, a is the first term (number of tiles in Figure 1), n is the figure number, and d is the common difference (the number of tiles we're adding each time, which in this case is 2).

Using the formula:

  • a (first term) = 8 tiles (start with this many for Figure 1)
  • d (common difference) = 2 tiles (because each figure have 2 more tiles than the previous one)

So the formula to find the number of tiles in Figure n is:

T(n) = 8 + (n-1)×2

To find the number of tiles in Figure 100, plug 100 in place of n:

T(100) = 8 + (100-1)×2

T(100) = 8 + 198 = 206 tiles

Therefore, Figure 100 has 206 tiles.

User BugliL
by
2.9k points
16 votes
16 votes
Basically the pattern is the figure number multiplied by two plus 6. For example, 2 x 2 is 4. 4 + 6 is 10. Now for 100: 100 times 2 is 200, plus 6 is 206.
User Asad Malik
by
2.6k points
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