Percent Change Flashcards
A action figure, which is currently worth $85, increases in value by 12% every year, how many dollars will the action figure be worth in two years, rounded to the nearest penny !!! ?
answer = 106.62
what is 21.55 rounded to the nearest percent?
= 22%
If 40 percent of x is y, and 10 percent of y is z, then x is what percent of z?
answer = 2500
the population of one city decreased from 212,000 to 178,000, while the population of another city increased from 67,000 to 88,000. What is the percent decrease, to the nearest percent, of the combined populations of the two cities?
answer = 5
the original population of the two cities was 279,000 and the final population is 266,000. So 13,000 / 279,000 = 5%
Greta buys a dress for $80 and sells it to Helga for %15 more. Helga sells it to Isabel for 25% less. Rounded to the nearest percentage, what is the minimum percentage that Isabel must increase the price she paid for the dress in order to sell it for more than the original price?
answer = 16
69(x) = 11 and then solve
A certain factory operates at full capacity for the first month, but production falls 25% during the second month. If the factory manages to increase production during the third month by 10%, by what percent must the factory increase production in the fourth month to return to full capacity?
answer = 21%
From January 2010 to January 2011, the police force of X increased by 15 officers. During the same period, the number of traffic citations issued in X increased to 110 percent of its previous total.
QA: The percent increase in the size of the police force in X from January 2010 to January 2011
QB: The percent increase in the number of traffic citations in X for those years
Answer = The relationship cannot be determined!
QA: Cannot be determined. Using the percent change formula, no information is given about the original number of police officers
QB: Can be determined and is equivalent to a 10% increase or multiply by 1.10
Year: 2008
Percent Change: 1.6
Year: 2009
Percent Change: 1.9
Year: 2010
Percent Change: 2.4
What is the 2008 concentration as a percent of the 2010 concentration?
Let the 2008 concentration = 100
The increase from 2008 to 2009 was 1.9%, so the 2009 concentration was 100 x 1.019. From 2009 to 2010, the increase was 2.4% so the 2010 concentration was 101.9 x 1.024 = 104.35. The 2008 concentration as a percent of the 2010 concentration is 100/ 104.35 x 100 = 95.8%
what is 106.624 rounded to the nearest penny??
answer = 106.62
The population of one city decreased from 212,000 to 178,000, while the population of another city increased from 67,000 to 88,000. What is the percent decrease, to the nearest percent, of the combined population of the two cities?
212 + 67 = 279
178 + 88 = 266
((279 - 266)/ 279 ) x 100 = 5
answer (rounded) = 5
how much is 2% of 3% of 5% of 7% of 1,234,567, rounded to the nearest integer?
for this do what it says
.02 x .03 x .05 x .07 = .0000021
.0000021 x 1,234,567 = 3 (rounded to int)
what is a 1.9% increase from 100 ?
100 * 1.019
answer = 101.9
