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It depends on how you define "powerful" and which particular cartridges you are comparing. Most people define power as some combination of velocity and muzzle energy, and different cartridges have different specifications, so one particular 9mm may be more powerful than one particular .40, but another 9mm may be less powerful than that same .40.
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Earn +20 ptsQ: Which is more powerful a 9 mm or 40 calibre bullet?
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Continue Learning about Other Math
What is 15 percent more than 40?
40 + 15% = 40*1.15 = 46
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40 + 80 = 120
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What are the equivalent fractions for 30 over 40?
30/40 = 15/2030/40 = 6/830/40 = 3/4 the simplest form30/40 = 60/8030/40 = 90/120 ...You can find more and more equivalent fractions, by multiplying by the same number both the numerator and the denominator.
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60 + 40 = 100 Ex: If you take 60 stickers and 40 more stickers, you get 100 stickers.
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