67 * 72 = 4824.
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49 x 72 = 3528
the answer is 72 and 96
2x2 - 72 would be factored into (2x - 12)(x + 6) or (2x + 12)(x - 6) To double check, multiply each pair: (2x - 12)(x + 6) = 2x2 + 12x - 12x - 72 = 2x2 - 72 (2x + 12)(x - 6) = 2x2 - 12x + 12 x - 72 = 2x2 - 72
9:2 :: x:16 We note that 16 = 2 x 8 So to bring to equivalence . the 'x' is 9 X 8 = 72 Hence 9:2 :: 72:16 Note the use of colons for 'is to', and 'as'.
Q: what percent of 45 is 72? 72/45=x/100 45*100=4500 72x=4500 4500 divided by 72=62.5 x=62.5 A: 62.5%