15
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Algebraically
225/x = 15
Multiply both sides by 'xx'
Hence
225 = 15x
Divide both sides by '15'
225/15 = x
x = 15 The Answer!!!!!
NB
15^(2) = 15 x 15 = 225
15
225 is the square of 15 - it equals 15 x 15 196 is the square of 14 - it equals 14 x 14 169 is the square of 13 - it equals 13 x 13. The "how" as to the relationship between 1515 and 225 is that the "multiplied by" has been omitted. In case the problem asks for the next in the series, 1212 is to 144 or 1616 is to 256.
To find the number that, when multiplied by itself twice, equals 225, you need to find the square root of 225. The square root of 225 is 15. Therefore, the number you are looking for is 15. When you multiply 15 by itself twice (15 x 15 x 15), you get 225.
28
1 times 225? 15*15? 3*45 225*1