# 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?

are nano particles real
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
no can't
Lohitha
where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
what king of growth are you checking .?
Renato
how did you get the value of 2000N.What calculations are needed to arrive at it
Privacy Information Security Software Version 1.1a
Good
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Jeannette has $5 and$10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
What is the expressiin for seven less than four times the number of nickels
How do i figure this problem out.
how do you translate this in Algebraic Expressions
why surface tension is zero at critical temperature
Shanjida
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?

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