# 9.2 Solve money applications  (Page 5/5)

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## Practice makes perfect

Solve Coin Word Problems

In the following exercises, solve the coin word problems.

Jaime has $\text{2.60}$ in dimes and nickels. The number of dimes is $14$ more than the number of nickels. How many of each coin does he have?

8 nickels, 22 dimes

Lee has $\text{1.75}$ in dimes and nickels. The number of nickels is $11$ more than the number of dimes. How many of each coin does he have?

Ngo has a collection of dimes and quarters with a total value of $\text{3.50}.$ The number of dimes is $7$ more than the number of quarters. How many of each coin does he have?

15 dimes, 8 quarters

Connor has a collection of dimes and quarters with a total value of $\text{6.30}.$ The number of dimes is $14$ more than the number of quarters. How many of each coin does he have?

Carolyn has $\text{2.55}$ in her purse in nickels and dimes. The number of nickels is $9$ less than three times the number of dimes. Find the number of each type of coin.

12 dimes and 27 nickels

Julio has $\text{2.75}$ in his pocket in nickels and dimes. The number of dimes is $10$ less than twice the number of nickels. Find the number of each type of coin.

Chi has $\text{11.30}$ in dimes and quarters. The number of dimes is $3$ more than three times the number of quarters. How many dimes and nickels does Chi have?

63 dimes, 20 quarters

Tyler has $\text{9.70}$ in dimes and quarters. The number of quarters is $8$ more than four times the number of dimes. How many of each coin does he have?

A cash box of $\text{1}$ and $\text{5}$ bills is worth $\text{45}.$ The number of $\text{1}$ bills is $3$ more than the number of $\text{5}$ bills. How many of each bill does it contain?

10 of the $1 bills, 7 of the$5 bills

Joe's wallet contains $\text{1}$ and $\text{5}$ bills worth $\text{47}.$ The number of $\text{1}$ bills is $5$ more than the number of $\text{5}$ bills. How many of each bill does he have?

In a cash drawer there is $\text{125}$ in $\text{5}$ and $\text{10}$ bills. The number of $\text{10}$ bills is twice the number of $\text{5}$ bills. How many of each are in the drawer?

10 of the $10 bills, 5 of the$5 bills

John has $\text{175}$ in $\text{5}$ and $\text{10}$ bills in his drawer. The number of $\text{5}$ bills is three times the number of $\text{10}$ bills. How many of each are in the drawer?

Mukul has $\text{3.75}$ in quarters, dimes and nickels in his pocket. He has five more dimes than quarters and nine more nickels than quarters. How many of each coin are in his pocket?

16 nickels, 12 dimes, 7 quarters

Vina has $\text{4.70}$ in quarters, dimes and nickels in her purse. She has eight more dimes than quarters and six more nickels than quarters. How many of each coin are in her purse?

Solve Ticket and Stamp Word Problems

In the following exercises, solve the ticket and stamp word problems.

The play took in $\text{550}$ one night. The number of $8 adult tickets was $10$ less than twice the number of $\text{5}$ child tickets. How many of each ticket were sold? 30 child tickets, 50 adult tickets If the number of $\text{8}$ child tickets is seventeen less than three times the number of $\text{12}$ adult tickets and the theater took in $\text{584},$ how many of each ticket were sold? The movie theater took in $\text{1,220}$ one Monday night. The number of $\text{7}$ child tickets was ten more than twice the number of $\text{9}$ adult tickets. How many of each were sold? 110 child tickets, 50 adult tickets The ball game took in $\text{1,340}$ one Saturday. The number of $\text{12}$ adult tickets was $15$ more than twice the number of $\text{5}$ child tickets. How many of each were sold? Julie went to the post office and bought both $\text{0.49}$ stamps and $\text{0.34}$ postcards for her office's bills She spent $\text{62.60}.$ The number of stamps was $20$ more than twice the number of postcards. How many of each did she buy? 40 postcards, 100 stamps Before he left for college out of state, Jason went to the post office and bought both $\text{0.49}$ stamps and $\text{0.34}$ postcards and spent $\text{12.52}.$ The number of stamps was $4$ more than twice the number of postcards. How many of each did he buy? Maria spent $\text{16.80}$ at the post office. She bought three times as many $\text{0.49}$ stamps as $\text{0.21}$ stamps. How many of each did she buy? 30 at 49 cents, 10 at 21 cents Hector spent $\text{43.40}$ at the post office. He bought four times as many $\text{0.49}$ stamps as $\text{0.21}$ stamps. How many of each did he buy? Hilda has $\text{210}$ worth of $\text{10}$ and $\text{12}$ stock shares. The numbers of $\text{10}$ shares is $5$ more than twice the number of $\text{12}$ shares. How many of each does she have? 15 at$10 shares, 5 at $12 shares Mario invested $\text{475}$ in $\text{45}$ and $\text{25}$ stock shares. The number of $\text{25}$ shares was $5$ less than three times the number of $\text{45}$ shares. How many of each type of share did he buy? ## Everyday math Parent Volunteer As the treasurer of her daughter's Girl Scout troop, Laney collected money for some girls and adults to go to a $\text{3-day}$ camp. Each girl paid $\text{75}$ and each adult paid $\text{30}.$ The total amount of money collected for camp was $\text{765}.$ If the number of girls is three times the number of adults, how many girls and how many adults paid for camp? 9 girls, 3 adults Parent Volunteer Laurie was completing the treasurer's report for her son's Boy Scout troop at the end of the school year. She didn't remember how many boys had paid the $\text{24}$ full-year registration fee and how many had paid a $\text{16}$ partial-year fee. She knew that the number of boys who paid for a full-year was ten more than the number who paid for a partial-year. If $\text{400}$ was collected for all the registrations, how many boys had paid the full-year fee and how many had paid the partial-year fee? ## Writing exercises Suppose you have $6$ quarters, $9$ dimes, and $4$ pennies. Explain how you find the total value of all the coins. Answers will vary. Do you find it helpful to use a table when solving coin problems? Why or why not? In the table used to solve coin problems, one column is labeled “number” and another column is labeled ‘“value.” What is the difference between the number and the value? Answers will vary. What similarities and differences did you see between solving the coin problems and the ticket and stamp problems? ## 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? #### Questions & Answers 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 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. 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 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 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 Berger describes sociologists as concerned with Mueller 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.
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
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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?