10% of 90 is 9. To calculate this: 1) Convert 10% to decimal (10/100 = 0.1), 2) Multiply by 90 to get 9.

What is 10% of 90?

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Result

10% of 90 = 9

10\% \times 90 = 90 \times \frac{10}{100} = 9

10% means 10 parts out of 100. To convert a percentage to a decimal, we divide by 100: 10% = 0.1

We multiply our number (90) by the decimal form of the percentage (0.1):
90 × 0.1 = 9

This means that 10% or 0.1 of 90 is 9. In other words, if you take 10% of 90, you get 9.

When a $90 product has a 10% discount, you save $9 and pay $81.

If you want to leave a 10% tip on a $90 meal, you would leave $9 as the tip.

When 10% sales tax is added to a $90 purchase, $9 is added for tax, making the total $99.

If 10% of students in a class are boys and there are 90 students total, that means there are 9 boys.

If you invest $90 and earn 10% annual interest, you'll receive $9 in interest for the year.

If a student answers 10% of questions correctly on a 90-question test, they answered 9 questions correctly.

If 10% of your monthly revenue goes to operating expenses and you earn $90, you spend $9 on operations.

If a hospital reduces infections by 10% from 90 cases monthly, they now have only 81 cases per month.

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