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choli [55]
3 years ago
6

What is 9/20 written as a percent

Mathematics
2 answers:
rosijanka [135]3 years ago
7 0

To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write \frac{9}{20} as a percent, we need to find a fraction equivalent to \frac{9}{20} that has a 100 in the denominator. We can do this by setting up a proportion.

\frac{9}{20} = \frac{n}{100}

Now, we can use cross products to find the missing value.

20n = 900

÷20     ÷20   ← divide by 20 on both sides

n = 45

Therefore, \frac{9}{20} is equal to \frac{45}{100} or 45%.

adell [148]3 years ago
6 0
9/20=0.45
0.45×100=45
45/100 is the answer
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