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Nevaeh is a cruise specialist and earned $364 commission after booking a cruise that cost $5,200 . What is her rate of commission?

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As a waitress, Emily earned $420 in tips on sales of $2,625 last Saturday night. What was her rate of commission?

16%

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Alejandra earned $1,393.74 commission on weekly sales of $15,486 as a salesperson at the computer store. What is her rate of commission?

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Maureen earned $7,052.50 commission when she sold a $45,500 car. What was the rate of commission?

15.5%

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Lucas earned $4,487.50 commission when he brought a $35,900 job to his office. What was the rate of commission?

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Solve Discount Applications

In the following exercises, find the sale price.

Perla bought a cellphone that was on sale for $50 off. The original price of the cellphone was $189 .

$139

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Sophie saw a dress she liked on sale for $15 off. The original price of the dress was $96 .

$81

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Rick wants to buy a tool set with original price $165 . Next week the tool set will be on sale for 40% off.

$125

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Angelo's store is having a sale on TV sets. One set, with an original price of $859 , is selling for $125 off.

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In the following exercises, find the amount of discount and the sale price.

Janelle bought a beach chair on sale at 60% off. The original price was $44.95

  1. $26.97
  2. $17.98

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Errol bought a skateboard helmet on sale at 40% off. The original price was $49.95 .

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Kathy wants to buy a camera that lists for $389 . The camera is on sale with a 33% discount.

  1. $128.37
  2. $260.63

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Colleen bought a suit that was discounted 25% from an original price of $245 .

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Erys bought a treadmill on sale at 35% off. The original price was $949.95 .

  1. $332.48
  2. $617.50

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Jay bought a guitar on sale at 45% off. The original price was $514.75 .

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In the following exercises, find the amount of discount and the discount rate. (Round to the nearest tenth of a percent if needed.)

Larry and Donna bought a sofa at the sale price of $1,344 . The original price of the sofa was $1,920 .

  1. $576
  2. 30%

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Hiroshi bought a lawnmower at the sale price of $240 . The original price of the lawnmower is $300 .

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Patty bought a baby stroller on sale for $301.75 . The original price of the stroller was $355.

  1. $53.25
  2. 15%

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Bill found a book he wanted on sale for $20.80 . The original price of the book was $32 .

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Nikki bought a patio set on sale for $480 . The original price was $850 .

  1. $370
  2. 43.5%

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Stella bought a dinette set on sale for $725 . The original price was $1,299 .

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Solve Mark-up Applications

In the following exercises, find the amount of the mark-up and the list price.

Daria bought a bracelet at wholesale cost $16 to sell in her handicraft store. She marked the price up 45% .

  1. $7.20
  2. $23.20

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Regina bought a handmade quilt at wholesale cost $120 to sell in her quilt store. She marked the price up 55% .

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Tom paid $0.60 a pound for tomatoes to sell at his produce store. He added a 33% mark-up.

  1. $0.20
  2. 44.2%

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Flora paid her supplier $0.74 a stem for roses to sell at her flower shop. She added an 85% mark-up.

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Alan bought a used bicycle for $115 . After re-conditioning it, he added 225% mark-up and then advertised it for sale.

  1. $258.75
  2. $373.75

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Michael bought a classic car for $8,500 . He restored it, then added 150% mark-up before advertising it for sale.

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Everyday math

Coupons Yvonne can use two coupons for the same purchase at her favorite department store. One coupon gives her $20 off and the other gives her 25% off. She wants to buy a bedspread that sells for $195 .

  1. Calculate the discount price if Yvonne uses the $20 coupon first and then takes 25% off.
  2. Calculate the discount price if Yvonne uses the 25% off coupon first and then uses the 20% coupon.
  3. In which order should Yvonne use the coupons?

  1. $131.25
  2. $126.25
  3. 25% off first, then $20 off

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Cash Back Jason can buy a bag of dog food for $35 at two different stores. One store offers 6% cash back on the purchase plus $5 off his next purchase. The other store offers 20% cash back.

  1. Calculate the total savings from the first store, including the savings on the next purchase.
  2. Calculate the total savings from the second store.
  3. Which store should Jason buy the dog food from? Why?

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Writing exercises

Priam bought a jacket that was on sale for 40% off. The original price of the jacket was $150 . While the sales clerk figured the price by calculating the amount of discount and then subtracting that amount from $150 , Priam found the price faster by calculating 60% of $150 .

  1. Explain why Priam was correct.
  2. Will Priam's method work for any original price?

  1. Priam is correct. The original price is 100%. Since the discount rate was 40%, the sale price was 60% of the original price.
  2. Yes.

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Roxy bought a scarf on sale for 50% off. The original price of the scarf was $32.90 . Roxy claimed that the price she paid for the scarf was the same as the amount she saved. Was Roxy correct? Explain.

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Self check

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

.

What does this checklist tell you about your mastery of this section? What steps will you take to improve?

Questions & Answers

what is Nano technology ?
Bob Reply
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?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
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
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
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
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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
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
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.
Kimberly Reply
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.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
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)=
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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