Concept explainers
*After you solve part (b) of this problem, think carefully about your explanation in part (a). You may find that you need to revise it.
a. What is the smallest number of coins you can use to make 43 cents if quarters, dimes, nickels, and pennies are available? Explain why your answer is correct.
b. What is the smallest number of coins you can use to make 43 cents if quarters, dimes, and pennies (but no nickels) are available? Explain why your answer is correct.
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
Mathematics for Elementary Teachers with Activities (5th Edition)
Additional Math Textbook Solutions
Elementary Algebra For College Students (10th Edition)
Beginning and Intermediate Algebra
Elementary & Intermediate Algebra
Elementary Statistics (13th Edition)
Finite Mathematics for Business, Economics, Life Sciences and Social Sciences
- A commuter must travel from Ajax to Barrie and back every day. Four roads join the two cities. The commuter likes to vary the trip as much as posible, so she alwaysleaves and returns by different roads. In how many different ways can she make the round-trip?arrow_forwardAlice and Bill have four grandchildren, and they have three framed pictures of each grandchild. They wish to choose one picture of each grandchild to display on the piano in their living room, arranged from oldest to youngest. In how many ways can they do this?arrow_forwardAlice and Bill have four grandchild, and they have three framed pictures of each grandchild. They wish to choose one picture of each grandchild to display on the piano in their living room, arranged from oldest to youngest. In how many ways can they do this?arrow_forward
- National Debt In mid-2015 the U.S. population was about 321 million. The national debt was well over 18 trillion. In millions of dollars, the debt was 18,151,998. How much did each American owe in mid-2015? Report your answer in thousands of dollars rounded to the nearest whole number.arrow_forwardIn how many different ways can two letters be chosen from the letters A, B, C, D, E, F, and G? (The order of the two letters is not important.)arrow_forwardLicense Plate Numbers In the state of Pennsylvania, each standard automobile license plate number consists of three letters followed by a four-digit number. How many distinct license plate numbers are possible in Pennsylvania?arrow_forward
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- Functions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage LearningAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage