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Jim's music store bought a guitar at wholesale price $1,200 . Jim marked the price up 50% . Find the amount of mark-up and the list price.

  1. 600%
  2. $1,800

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The Auto Resale Store bought Pablo's Toyota for $8,500 . They marked the price up 35% . Find the amount of mark-up and the list price.

  1. $2,975
  2. $11,475

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Key concepts

  • Sales tax applications involve finding a percent of an original price and adding it to the original price to get a total. See [link] .
  • Commission applications involve finding a percent of sales. See [link] .
  • Discount applications involve subtracting a percent of an original price. See [link] .
  • Mark-up applications involve adding a percent of a wholesale price. See [link] .

Practice makes perfect

Solve Sales Tax Applications

In the following exercises, find the sales tax and the total cost.

The cost of a pair of boots was $84 . The sales tax rate is 5% of the purchase price.

  1. $4.20
  2. $$88.20

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The cost of a refrigerator was $1,242 . The sales tax rate is 8% of the purchase price.

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The cost of a microwave oven was $129 . The sales tax rate is 7.5% of the purchase price.

  1. $9.68
  2. $138.68

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The cost of a tablet computer is $350 . The sales tax rate is 8.5% of the purchase price.

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The cost of a file cabinet is $250 . The sales tax rate is 6.85% of the purchase price.

  1. $17.13
  2. $267.13

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The cost of a luggage set $400 . The sales tax rate is 5.75% of the purchase price.

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The cost of a 6 -drawer dresser $1,199 . The sales tax rate is 5.125% of the purchase price.

  1. $61.45
  2. $1,260.45

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The cost of a sofa is $1,350 . The sales tax rate is 4.225% of the purchase price.

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In the following exercises, find the sales tax rate.

Shawna bought a mixer for $300 . The sales tax on the purchase was $19.50 .

6.5%

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Orphia bought a coffee table for $400 . The sales tax on the purchase was $38 .

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Bopha bought a bedroom set for $3,600 . The sales tax on the purchase was $246.60 .

6.85%

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Ruth bought a washer and dryer set for $2,100 . The sales tax on the purchase was $152.25 .

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Solve Commission Applications

In the following exercises, find the commission.

Christopher sold his dinette set for $225 through an online site, which charged him 9% of the selling price as commission. How much was the commission?

$20.25

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Michele rented a booth at a craft fair, which charged her 8% commission on her sales. One day her total sales were $193 . How much was the commission?

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Farrah works in a jewelry store and receives 12% commission when she makes a sale. How much commission will she receive for selling a $8,125 ring?

$975

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Jamal works at a car dealership and receives 9% commission when he sells a car. How much commission will he receive for selling a $32,575 car?

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Hector receives 17.5% commission when he sells an insurance policy. How much commission will he receive for selling a policy for $4,910 ?

$859.25

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Denise receives 10.5% commission when she books a tour at the travel agency. How much commission will she receive for booking a tour with total cost $7,420 ?

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In the following exercises, find the rate of commission.

Dontay is a realtor and earned $11,250 commission on the sale of a $375,000 house. What is his rate of commission?

3%

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Questions & Answers

how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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How do i figure this problem out.
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why surface tension is zero at critical temperature
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Practice Key Terms 9

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Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
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