# math

posted by .

percent of change
20 is decreased to 11. What is the percent of change?

• math -

11 = x(20)
x = .55
1 - .55 = .45
so 45 % decrease

• math -

20 is decreased to 11

## Similar Questions

1. ### math

A bond has an average return of 6.8 percent and a standard deviation of 4.6 percent. What range of returns would you expect to see 68 percent of the time?
2. ### ENVIRO SCIENCE

1.Between 1950 and 2004, the world population increased exponentially from 2.5 billion to 6.4 billion, what is the percent change?
3. ### math

How do you solve percent of change? My problem says identify the percent of change as an increase or decrease. Find the percent change. Round to the nearest 10th. 20 to 25
4. ### Math

The table shows how many hours Catalina spent babysitting during the months of April and May. a. If Catalina charges \$6.50 per hour, what is the percent of change in the amount of money earned from April to May?
5. ### Math

Find the percent change if 20 is decreased to 15 a 15% b 20% c 25% d 33%
6. ### math

By what percent will a fraction change if its numerator is decreased by 10% and its denominator is decreased by 50%?
7. ### math

By what percent will a fraction change if its numerator is increased by 60% and its denominator is decreased by 20%?
8. ### Anonyms

By what percent will a fraction change if its numerator is decreased by 50% and its denominator is decreased by 25%?
9. ### math

If the length of the base of a triangle is increased by 10 percent and the height is decreased by 20 percent, what is the percent change (increase or decrease) in the area of the triangle?
10. ### math

my question is Identify the percent of change as increase or a decrease. Then find the percent of change. Round to the nearest tenth of a percent, if necessary. 1/3 to 2/3. How do I figure it out?

More Similar Questions