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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

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
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
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
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
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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