36
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45/80 x 100 = 56.25 Therefore, 45 is 56.25 percent of 80.
45/80 = 9/16
45 over 80 simplifies to 9 over 16.
45
Percent means "divide by 100", "of" in Math means to "multiply", and "is" means "equal." Lets write what we know into an equation to make this easier.36 = ?% x 80We know that something x something equals a number, but we also know that the number divided by one something gives us the other something. Follow? If something % x 80 = 36, then 36 divided by 80 gives us the percent to fill in the question mark (when we multiply by 100). 36 divided by 80 = .45, or 45%Check your work by finding 45% of 80. 80 x .45 = 36, so our answer is correct.