.9 is already rounded to 1 decimal place. To 2 dp it is 0.90
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When rounding 4.79 to two decimal places, you look at the third decimal place, which is 9. Since 9 is greater than 5, you round up the second decimal place by 1. Therefore, 4.79 rounded to two decimal places is 4.80.
15.40
If you have 9 questions wrong out of 85, you have 10.59 percent incorrect answers, rounded to two decimal places, and 89.41 percent correct answers.
149.9875 to 2 decimal places is 149.99. When rounding a number to two decimal places, you look at the third decimal place. If it is 5 or greater, you round up the second decimal place. In this case, the third decimal place is 7, so we round up the second decimal place to 9.
To round 15.894 percent to two decimal places, you first convert it to a decimal by dividing by 100: 15.894% = 15.894/100 = 0.15894. Then, you round the decimal to two decimal places, which means you look at the third decimal place (9 in this case). Since 9 is greater than or equal to 5, you round up the second decimal place, resulting in 15.89%.