6.2 Solve general applications of percent  (Page 5/7)

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Emma gets paid $\text{3,000}$ per month. She pays $\text{750}$ a month for rent. What percent of her monthly pay goes to rent?

25%

Dimple gets paid $\text{3,200}$ per month. She pays $\text{960}$ a month for rent. What percent of her monthly pay goes to rent?

Find Percent Increase and Percent Decrease

In the following exercises, find the percent increase or percent decrease.

Tamanika got a raise in her hourly pay, from $\text{15.50}$ to $\text{17.55}.$ Find the percent increase.

13.2%

Ayodele got a raise in her hourly pay, from $\text{24.50}$ to $\text{25.48}.$ Find the percent increase.

Annual student fees at the University of California rose from about $\text{4,000}$ in $2000$ to about $\text{9,000}$ in $2014.$ Find the percent increase.

125%

The price of a share of one stock rose from $\text{12.50}$ to $\text{50}.$ Find the percent increase.

According to Time magazine $\left(\text{7/19/2011}\right)$ annual global seafood consumption rose from $22$ pounds per person in $1960$ to $38$ pounds per person today. Find the percent increase. (Round to the nearest tenth of a percent.)

72.7%

In one month, the median home price in the Northeast rose from $\text{225,400}$ to $\text{241,500}.$ Find the percent increase. (Round to the nearest tenth of a percent.)

A grocery store reduced the price of a loaf of bread from $\text{2.80}$ to $\text{2.73}.$ Find the percent decrease.

2.5%

The price of a share of one stock fell from $\text{8.75}$ to $\text{8.54}.$ Find the percent decrease.

Hernando's salary was $\text{49,500}$ last year. This year his salary was cut to $\text{44,055}.$ Find the percent decrease.

11%

From $2000$ to $2010,$ the population of Detroit fell from about $951,000$ to about $714,000.$ Find the percent decrease. (Round to the nearest tenth of a percent.)

In one month, the median home price in the West fell from $\text{203,400}$ to $\text{192,300}.$ Find the percent decrease. (Round to the nearest tenth of a percent.)

5.5%

Sales of video games and consoles fell from $\text{1,150}$ million to $\text{1,030}$ million in one year. Find the percent decrease. (Round to the nearest tenth of a percent.)

Everyday math

Tipping At the campus coffee cart, a medium coffee costs $\text{1.65}.$ MaryAnne brings $\text{2.00}$ with her when she buys a cup of coffee and leaves the change as a tip. What percent tip does she leave?

21.2%

Late Fees Alison was late paying her credit card bill of $\text{249}.$ She was charged a $\text{5%}$ late fee. What was the amount of the late fee?

Writing exercises

Without solving the problem $“44$ is $\text{80%}$ of what number”, think about what the solution might be. Should it be a number that is greater than $44$ or less than $44?$ Explain your reasoning.

The original number should be greater than 44.80% is less than 100%, so when 80% is converted to a decimal and multiplied to the base in the percent equation, the resulting amount of 44 is less. 44 is only the larger number in cases where the percent is greater than 100%.

Without solving the problem “What is $\text{20%}$ of $300?”$ think about what the solution might be. Should it be a number that is greater than $300$ or less than $300?$ Explain your reasoning.

After returning from vacation, Alex said he should have packed $\text{50%}$ fewer shorts and $\text{200%}$ more shirts. Explain what Alex meant.

Alex should have packed half as many shorts and twice as many shirts.

Because of road construction in one city, commuters were advised to plan their Monday morning commute to take $\text{150%}$ of their usual commuting time. Explain what this means.

Self check

After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.

After reviewing this checklist, what will you do to become confident for all objectives?

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or in general
Ebrahim
in general
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name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
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Damian
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Uday
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Berger describes sociologists as concerned with
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