50% of 90 is 45. To calculate this: 1) Convert 50% to decimal (50/100 = 0.5), 2) Multiply by 90 to get 45.

What is 50% of 90?

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Result

50% of 90 = 45

50\% \times 90 = 90 \times \frac{50}{100} = 45

50% means 50 parts out of 100. To convert a percentage to a decimal, we divide by 100: 50% = 0.5

We multiply our number (90) by the decimal form of the percentage (0.5):
90 × 0.5 = 45

This means that 50% or 0.5 of 90 is 45. In other words, if you take 50% of 90, you get 45.

When a $90 product has a 50% discount, you save $45 and pay $45.

If you want to leave a 50% tip on a $90 meal, you would leave $45 as the tip.

When 50% sales tax is added to a $90 purchase, $45 is added for tax, making the total $135.

If 50% of students in a class are boys and there are 90 students total, that means there are 45 boys.

If you invest $90 and earn 50% annual interest, you'll receive $45 in interest for the year.

If a student answers 50% of questions correctly on a 90-question test, they answered 45 questions correctly.

If 50% of your monthly revenue goes to operating expenses and you earn $90, you spend $45 on operations.

If a hospital reduces infections by 50% from 90 cases monthly, they now have only 45 cases per month.

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