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5 x 5 = 25 + 1 = 26
12X + 5 = 9X - 26 subtract 9X from each side 12X - 9X + 5 = 9X - 9X - 26 3X + 5 = - 26 subtract 5 from each side 3X + 5 - 5 = - 26 - 5 3X = - 31 divide both sides integers by 3 (3/3)X = - 31/3 X = - 31/3 ---------------------
To calculate the number of 5-number combinations from a pool of 1-26, we use the combination formula, which is nCr = n! / r!(n-r)!. In this case, n = 26 (numbers 1-26) and r = 5 (5-number combinations). Plugging these values into the formula, we get 26C5 = 26! / 5!(26-5)! = 26! / 5!21!. Simplifying this further, we get 2625242322 / 54321 = 65,780 different 5-number combinations.
2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 x 5 x 5 = 1,000,000or 26 x 56 = 1,000,000
26/40 = x/100 cross multiply 40x=2600 x= 65%