## How do you find the percentage of a shaded area?

Find the percentage of a portion of an object by dividing the area of the portion by the area of the whole original object. Multiply the length times the width of the original piece to calculate its area in square inches, feet or centimeters.

## How do you find a number when the percent is not known?

What one does to a number, the other undoes. When you have an equation such as 20% n = 30, you can divide 30 by 20% to find the unknown: n = 30 20%. You can solve this by writing the percent as a decimal or fraction and then dividing.

**What percent of the whole is shaded?**

The unshaded portion of the whole grid is 88 parts out of 100, or 88% of the grid. Notice that the shaded and unshaded portions together make 100% of the grid (100 out of 100 squares)….ExampleProblemWhat percent of the grid is shaded?Answer23% of the grid is shaded.2

### What percentage is not shaded?

The whole of any object or shape is 100%. (a) If 71% of the square is shaded, 29% must be not shaded. (b) If 60% of the rectangle is shaded, 40% must be not shaded.

### What percentage of 120 should be added to it to get 150?

Answer. The number is increased from 120 to 150. The numeric increase in the number is 150 – 120 = 30. In terms of the percentage of the original number it is 25%.

**What is 1 in 20 as a percent?**

5%

## What is 3 out of 20 as a percentage?

15%

## How do you write 7/20 as a percentage?

Written as a percent, 720 is 35% .

**What is 1/10 as a percentage?**

Example ValuesPercentDecimalFraction5%0.051/2010%0.11/1012½%0.1251/820%0.21/512

### What is 3/10 as a percentage?

Fraction to percent conversion calculator – RapidTableswww.rapidtables.com › convert › number › fraction-to-pe…www.rapidtables.com › convert › number › fraction-to-pe…

### What is 1 in 100 as a percentage?

1%

**What is the percent of 10 out of 50?**

20%

## What number is 25 percent of 80?

20

## What number is 20% of 75?

15

**How do you get 30% of 80?**

Hi Denise, Percent means per one-hundred and hence 30% is 30/100. Thus 30% of 80 is (30/100) x 80 = 24.