A 20 percent discount is
0.20 in decimal format
. Secondly, multiply the decimal discount by the price of the item to determine the savings in dollars. For example, if the original price of the item equals $24, you would multiply 0.2 by $24 to get $4.80.
How do you work out the top 20 percent?
For a clothing sale, the number would the price of the clothes. Take the number you found in Step 2
and multiply it by 0.2
. For example, If a pair of jeans cost $50 and there is a 20 percent sale on everything in the store, you would save $10 ( 50 x 0.2 = 10).
How do you work out 20% on a calculator?
Dividing 20 percent by 100 equals
0.2
. Set up an equation as 0.2x = 8, which means 20 percent of x equals 8. Solve the equation by dividing each side by 0.2.
How do you work out what percent Something is?
Find the percentage of one number in relation to another with the formula
Percentage = (number you want to find the percentage for ÷ total) × 100
. Move the decimal point two places to the right to convert from a decimal to a percentage, and two places to the left to convert from a percentage to a decimal.
How do you find 20 percent of a simple number?
- Move the decimal point in your pretax bill one place to the left to get $5.375 from $53.75.
- Round up to the next easy number: $5.40.
- Double that number to get $10.80, which is 20% of your original bill.
How do you find 20 percent of a number without a calculator?
As finding 10% of a number means to divide by 10, it is common to think that to find 20% of a number you should divide by 20 etc. Remember, to find 10% of a number means dividing by 10 because 10 goes into 100 ten times. Therefore, to find 20% of a number,
divide by 5 because 20 goes into 100 five times
.
How do you find 20 percent of a price?
- Take the original number and divide it by 10.
- Double your new number.
- Subtract your doubled number from the original number.
- You have taken 20 percent off! For $30, you should have $24.
How do you find 25% of something?
25 percent means one fourth. To calculate 25 percent of a number,
simply divide it by 4
. For example, 25 percent of 12 is 12 divided by 4, or 3. 10 percent means one tenth.
How do I figure out area?
The area is measurement of the surface of a shape. To find the area of a rectangle or a square you need
to multiply the length and the width of a rectangle or a square
. Area, A, is x times y. Find the area of this square.
How do I calculate mean?
The mean, or average, is calculated
by adding up the scores and dividing the total by the number of scores
.
What number is 20% of 80?
Answer: 20% of 80 is
16
.
How do you find 15% of a number?
15% is 10% + 5% (or 0.15 = 0.1 + 0.05, dividing each percent by 100). Thinking about it this way is useful for two reasons. First, it’s easy to multiply any number
by 0.1
; just move the decimal point left one digit. For example, 75.00 x 0.1 = 7.50, or 346.43 x 0.1 = 34.64 (close enough).
What number is 20% of 50?
Multiply 50 by 20%, and solve the expression. Where 20% can be written as 20/100. Therefore, 20 percent of number 50 is
10
.
How do you find 35 percent of a number without a calculator?
- Divide the number by 10 to find 10%. …
- Multiply this number by how many tens are in the percentage you’re looking for – in this case, that’s 3, so you work out 30% to be 24 x 3 = 72.
How do you find 30% of a number?
Once you have the decimal figure, multiply it by the number for which you seek to calculate the percentage; i.e., if you need to know 30 percent of 100, you convert 30 percent to a decimal (
0.30
) and multiply it by 100 (0.30 x 100, which equals 30).
