Q: What is the pattern rule of 7 and 13 and 25 and 49?

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61

81

36.7525% off of 49= 25% discount applied to 49= 49 - (25% * 49)= 49 - (0.25 * 49)= 49 - 12.25= 36.75

49 over 25 as a decimal = 1.9649/25= 49 ÷ 25= 1.96 in decimal

factors of : 25 = 1, 5, 25 49 = 1, 7, 49

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61

t(n) = n2

81

You have to find a pattern in the numbers, and exclude the one that messes up the pattern.

Assuming the sequence does not merely skip from 13 to 49, and instead carries on in the same pattern, the sequence proceeds thus:1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49.This is thirteen terms. The formula for finding these terms is 4x-3.

Reducing squares 100 = 10² 81 = 9² 64 = 8² 49 = 7² 36 = 6² so next is 25 = 5² ---------------------------------- For the given pattern the nth term (n = 1 to 5) is given by: t(n) = n² - 22n + 121

36.7525% off of 49= 25% discount applied to 49= 49 - (25% * 49)= 49 - (0.25 * 49)= 49 - 12.25= 36.75

The next number will be 25 because 5 times 5 = 25

Reducing squares 9 x 9 = 81 8 x 8 = 64 7 x 7 = 49 6 x 6 = 36 so next would be 5 x 5 = 25

49 over 25 as a decimal = 1.9649/25= 49 ÷ 25= 1.96 in decimal

factors of : 25 = 1, 5, 25 49 = 1, 7, 49

49 - 25 = 24