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In math "of" means multiplication(*), "is" means equals(=), and "what number" can be described as a variable such as "X". Also 37.5 percent written as a decimal is .375 thus you can write this equation as: .375*X=8.13 --> then you must solve for X to find the number. To solve for X you must divide both sides by .375. Thus your answer comes out to be (8.13/.375) which is equal to 21.68

Q: 37.5 percent of what number is 8.13?

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45/0.12 = 375 Therefore, the number that 45 is 12 percent of is 375.

Converting a number to a percent is easy; just multiply by 100: 3.75 x 100 = 375%

30 / 0.08 = 375 Therefore, the original number is 375.

15

281.25. You divide the number 375 by 100 then multiply by 75.

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45/0.12 = 375 Therefore, the number that 45 is 12 percent of, is 375.

45/0.12 = 375 Therefore, the number that 45 is 12 percent of is 375.

Converting a number to a percent is easy; just multiply by 100: 3.75 x 100 = 375%

30 / 0.08 = 375 Therefore, the original number is 375.

15

3/375 = 0.0080.008 x 100 = 0.8

281.25. You divide the number 375 by 100 then multiply by 75.

U divide the percentage by the number. So .12/375=45

75% of 500 is 375

375 = 37,500 percent

75 /0.2 = 375

12 percent of 375 = 45 12% of 375 = 12% * 375 = 0.12 * 375 = 45