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This question can be written as 30=75% times X

75% can be simplified to either 3/4 or .75

The fraction makes more sense in my head, because I can easily see that 30 is three-fourths of a certain number. If this makes sense to you, don't bother reading the rest.

For the sake of the math sentence, though, I'll do it the decimal way.

So we re-write it as 30=.75*X

then we move the numbers onto one side of the equation and leave the X on the other, by dividing both sides by .75

So we're left with 30/.75 = X

with a calculator, we find that 30 divided by .75 is 40.

So X = 40

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14y ago

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More answers

x = 0.30 * 75

x = 22.5

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Wiki User

13y ago
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250

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Wiki User

14y ago
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Q: 75 is 30 percent of what number?
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