Solutions for Math in Our World
Problem 1TTO:
Round each number to the place value given. (a) 372,651 (hundreds) (b) 32.971 (ones) (c) 0.37056...Problem 2TTO:
At one ballpark, large frosty beverages cost 7.25 each. Estimate the cost of buying one for each...Problem 3TTO:
A rental car company charges a rate of 78 per week to rent an economy car. For an up-front fee of...Problem 4TTO:
Next up for the Osbueos: a bedroom remodel. They will have 28 linear feet of wall painted at 12 per...Problem 5TTO:
Using the graph shown in Example 5, find the approximate percentage of electricity generated by...Problem 6TTO:
Using the pie chart shown in Example 6, find the approximate number of fatal occupational injuries...Problem 7TTO:
(a) Using the graph shown in Example 7, find the approximate number of cable distribution points in...Problem 3E:
How can estimation be used as a quick check to see if the answer to a math problem is reasonable?Problem 5E:
Explain why there is never a single, correct answer to a question that asks you to estimate some...Problem 7E:
How is information described in a pie chart? What sort of information works well with pie charts?Problem 8E:
How can you tell when a quantity is getting larger over time from looking at a time-series graph?Problem 10E:
For Exercises 928, round the number to the place value given. 10. 732.6498 (thousandths)Problem 11E:
For Exercises 928, round the number to the place value given. 11. 3,261,437 (ten-thousands)Problem 14E:
For Exercises 928, round the number to the place value given. 14. 45,371,999 (millions)Problem 15E:
For Exercises 928, round the number to the place value given. 15. 218,763 (hundred-thousands)Problem 20E:
For Exercises 928, round the number to the place value given. 20. 83,261,000 (millions)Problem 21E:
For Exercises 928, round the number to the place value given. 21. 5,462,371 (ten-thousands)Problem 23E:
For Exercises 928, round the number to the place value given. 23. 272,341 (hundred-thousands)Problem 25E:
For Exercises 928, round the number to the place value given. 25. 264.97348 (ten-thousandths)Problem 26E:
For Exercises 928, round the number to the place value given. 26. 1,655,432 (thousands)Problem 27E:
For Exercises 928, round the number to the place value given. 27. 482.6002 (hundredths)Problem 28E:
For Exercises 928, round the number to the place value given. 28. 426.861356 (hundred-thousandths)Problem 29E:
For Exercises 2932, estimate the result of the computation by rounding the numbers involved, then...Problem 30E:
For Exercises 2932, estimate the result of the computation by rounding the numbers involved, then...Problem 31E:
For Exercises 2932, estimate the result of the computation by rounding the numbers involved, then...Problem 32E:
For Exercises 2932, estimate the result of the computation by rounding the numbers involved, then...Problem 36E:
Estimate the distance you can travel in 3 hours 25 minutes if you drive on average 42 miles per...Problem 37E:
Estimate the sale price of a futon you saw on eBay that costs 178.99 and is now on sale for 60% off.Problem 39E:
Estimate the total cost of the following meal at McDonalds: Quarter pounder with cheese 2.89...Problem 40E:
Estimate the total cost of the following items for your dorm room: Loft bed 159.95 Beanbag chair...Problem 41E:
A group of five architecture students enters a design for an eco-friendly building in a contest, and...Problem 42E:
A biology lab houses 47 rats for experiments, and they go through about 105 pounds of food each...Problem 43E:
If Erin earns 48,300.00 per year, estimate how much she earns per hour. Assume that she works 40...Problem 44E:
If Jamaal earns 8.75 per hour, estimate how much he would earn per year. Assume that he works 40...Problem 45E:
Estimate the cost of putting up a decorative border in your dorm room if your room is 24 feet long...Problem 46E:
Estimate the cost of painting a homecoming float if the area to be painted is 12 feet by 16 feet and...Problem 47E:
The Tea Party at a large university plans to line both sides of a 30-foot-long hallway with posters...Problem 48E:
Estimate your cost to live in an apartment for 1 year if the rent is 365.00 per month and utilities...Problem 49E:
Use the information shown in the graph for Exercises 4952. The graph gives the areas of various...Problem 50E:
Use the information shown in the graph for Exercises 4952. The graph gives the areas of various...Problem 51E:
Use the information shown in the graph for Exercises 4952. The graph gives the areas of various...Problem 52E:
Use the information shown in the graph for Exercises 4952. The graph gives the areas of various...Problem 53E:
Use the information shown in the graph for Exercises 5356. The graph represents a survey of 1,385...Problem 54E:
Use the information shown in the graph for Exercises 5356. The graph represents a survey of 1,385...Problem 55E:
Use the information shown in the graph for Exercises 5356. The graph represents a survey of 1,385...Problem 56E:
Use the information shown in the graph for Exercises 5356. The graph represents a survey of 1,385...Problem 57E:
Use the information shown in the graph for Exercises 5760. The graph represents a survey of...Problem 58E:
Use the information shown in the graph for Exercises 5760. The graph represents a survey of...Problem 59E:
Use the information shown in the graph for Exercises 5760. The graph represents a survey of...Problem 60E:
Use the information shown in the graph for Exercises 5760. The graph represents a survey of...Problem 61E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 62E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 63E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 64E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 65E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 66E:
Use the line graph shown for Exercises 6166. The graph shows annual cigarette consumption (in...Problem 67E:
Use the information in the graph for Exercises 6770. The graph shows the average daily reach for the...Problem 68E:
Use the information in the graph for Exercises 6770. The graph shows the average daily reach for the...Problem 69E:
Use the information in the graph for Exercises 6770. The graph shows the average daily reach for the...Problem 70E:
Use the information in the graph for Exercises 6770. The graph shows the average daily reach for the...Problem 71E:
Use the information in the graph for Exercises 7174. The graph shows the average penalty fees for...Problem 72E:
Use the information in the graph for Exercises 7174. The graph shows the average penalty fees for...Problem 73E:
Use the information in the graph for Exercises 7174. The graph shows the average penalty fees for...Problem 74E:
Use the information in the graph for Exercises 7174. The graph shows the average penalty fees for...Problem 75E:
In Jareds math class, he scored 84, 92, 79, and 86 on the first four tests. He needs at least an 80%...Problem 76E:
Entering a postseason basketball tournament, Martas goal is to average at least 15 points per game...Problem 77E:
One of the most valuable uses of estimation is to roughly keep track of the total cost of items when...Problem 78E:
Refer to Problem 77. In getting my swimming pool ready for summer, I usually buy the following...Problem 79E:
Sometimes graphs are drawn in such a way as to support a conclusion that may or may not be true....Problem 80E:
The choice of labeling on a graph can have a profound effect on how the information is perceived....Browse All Chapters of This Textbook
Chapter 1 - Problem SolvingChapter 1.1 - The Nature Of Mathematical ReasoningChapter 1.2 - Estimation And Interpreting GraphsChapter 1.3 - Problem Solving StrategiesChapter 2 - SetsChapter 2.1 - The Nature Of SetsChapter 2.2 - Subsets And Set OperationsChapter 2.3 - Using Venn Diagrams To Study Set OperationsChapter 2.4 - Using Sets To Solve ProblemsChapter 2.5 - Infinite Sets
Chapter 3 - LogicChapter 3.1 - Statements And QuantifiersChapter 3.2 - Truth TablesChapter 3.3 - Types Of StatementsChapter 3.4 - Logical ArgumentsChapter 3.5 - Euler CirclesChapter 4 - Numeration SystemsChapter 4.1 - Early And Modern Numeration SystemsChapter 4.2 - Tools And Algorithms In ArithmeticChapter 4.3 - Base Number SystemsChapter 4.4 - Operations In Base Number SystemsChapter 5 - The Real Number SystemChapter 5.1 - The Natural NumbersChapter 5.2 - The IntegersChapter 5.3 - The Rational NumbersChapter 5.4 - The Irrational NumbersChapter 5.5 - The Real NumbersChapter 5.6 - Exponents And Scientific NotationChapter 5.7 - Arithmetic And Geometric SequencesChapter 6 - Topics In AlgebraChapter 6.1 - The Fundamentals Of AlgebraChapter 6.2 - Solving Linear EquationsChapter 6.3 - Applications Of Linear EquationsChapter 6.4 - Ratio, Proportion, And VariationChapter 6.5 - Solving Linear InequalitiesChapter 6.6 - Solving Quadratic EquationsChapter 7 - Additional Topics In AlgebraChapter 7.1 - The Rectangular Coordinate System And Linear Equations In Two VariablesChapter 7.2 - Systems Of Linear EquationsChapter 7.3 - Linear InequalitiesChapter 7.4 - Linear ProgrammingChapter 7.5 - FunctionsChapter 7.6 - Quadratic, Exponential, And Logarithmic FunctionsChapter 7.7 - Solving Systems Of Linear Equations Using MatricesChapter 8 - Consumer MathChapter 8.1 - PercentsChapter 8.2 - Simple InterestChapter 8.3 - Compound InterestChapter 8.4 - Installment BuyingChapter 8.5 - Student Loans And Home BuyingChapter 8.6 - Investing In Stocks And BondsChapter 9 - MeasurementChapter 9.1 - Measures Of Length: Converting Units And The Metric SystemChapter 9.2 - Measures Of Area, Volume, And CapacityChapter 9.3 - Measures Of Weight And TemperatureChapter 10 - GeometryChapter 10.1 - Points, Lines, Planes, And AnglesChapter 10.2 - TrianglesChapter 10.3 - Polygons And PerimeterChapter 10.4 - Areas Of Polygons And CirclesChapter 10.5 - Volume And Surface AreaChapter 10.6 - Right Triangle TrigonometryChapter 10.7 - A Brief Survey Of Non-euclidean And Other GeometriesChapter 11 - Probability And Counting TechniquesChapter 11.1 - The Fundamental Counting Principle And PermutationsChapter 11.2 - CombinationsChapter 11.3 - Basic Concepts Of ProbabilityChapter 11.4 - Tree Diagrams, Tables, And Sample SpacesChapter 11.5 - Probability Using Permutations And CombinationsChapter 11.6 - Odds And ExpectationChapter 11.7 - The Addition Rules For ProbabilityChapter 11.8 - The Multiplication Rules And Conditional ProbabilityChapter 11.9 - The Binomial DistributionChapter 12 - StatisticsChapter 12.1 - Gathering And Organizing DataChapter 12.2 - Picturing DataChapter 12.3 - Measures Of AverageChapter 12.4 - Measures Of VariationChapter 12.5 - Measures Of PositionChapter 12.6 - The Normal DistributionChapter 12.7 - Applications Of The Normal DistributionChapter 12.8 - Correlation And Regression AnalysisChapter 13 - Voting MethodsChapter 13.1 - Preference Tables And The Plurality MethodChapter 13.2 - The Borda Count Method And The Plurality-with-elimination MethodChapter 13.3 - The Pairwise Comparison Method And Approval VotingChapter 13.4 - ApportionmentChapter 13.5 - Apportionment FlawsChapter 14 - Graph TheoryChapter 14.1 - Basic Concepts Of Graph TheoryChapter 14.2 - Euler's TheoremChapter 14.3 - Hamilton Paths And CircuitsChapter 14.4 - TreesChapter 15 - Other Mathematical SystemsChapter 15.1 - Mathematical Systems And GroupsChapter 15.2 - Clock ArithmeticChapter 15.3 - Modular Systems
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