Concept explainers
Reminder Round all answers to two decimal places unless otherwise indicated.
A wedding Reception You rent a wedding venue for a cost of
a. What is the cost of the venue and lunch if you invite
b. Find a formula showing the cost of the venue and the lunch as a function of
c. The amount you have budgeted for the venue and catered lunch is
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Additional Math Textbook Solutions
Elementary & Intermediate Algebra
A First Course in Probability (10th Edition)
APPLIED STAT.IN BUS.+ECONOMICS
Precalculus
Elementary Statistics Using The Ti-83/84 Plus Calculator, Books A La Carte Edition (5th Edition)
University Calculus: Early Transcendentals (4th Edition)
- Clearance A department store is clearing out merchandise in order to make room for new inventory. The plan is to mark down items by 30% each week. This means that each week the cost of an item is 70% of the previous week’s cost. If the original cost of a sofa was $1,000, the cost for the first week would be $1000(0.70) and the cost of the item during the second week would be $1,000(0.70)2. Complete the table shown below. What will be the cost of the sofa during the fifth week? Simplify the expression, to show the cost in dollars.arrow_forwardEarnings Reynalda works as a salesperson in the electronics division of a department store. She earns a base weekly salary plus a commission based on the retail price of the goods she has sold. If she sells x dollars’ worth of goods in a week, her earnings for that week are given by the function E(x)=400+0.03x (a) Find E(2000) and E(15,000) . (b) What do your answers in part (a) represent? (c) Find E(0) . What does this number represent? (d) Find the net change and the average rate of change of her earnings E between x=2000 and x=15,000 . (e) From the formula for E, determine what percentage Reynalda earns on the goods that she sells.arrow_forwardMortgage Rates The following table is taken from the website of Freddie Mac. It shows rates for 30-year fixed-rate mortgages since 1970. y=Year r=Mortgagerate 1975 9.05 1980 13.74 1985 12.43 1990 10.13 1995 7.93 2000 8.05 2005 5.87 2010 4.69 2015 3.84 a. Explain in practical terms the meaning of r(2003). b. Use the table to estimate the value of r(2003).arrow_forward
- Power Consumption: The figure shows the power consumption in San Francisco for a day in September (P is measured in megawatts; t is hours stating at midnight). (a) What was the power consumption at 6:00 A.M? At 6:00 P.m.? (b) When was the power consumption the lowest? (c) Find the net change in the power consumption from 9:00 A.M. to 7:00 P.M/arrow_forwardIf Descartes’ Rule of Signs reveals a no changeof signs or one sign of changes, what specificconclusion can be drawn?arrow_forwardSuppose gas costs 3.50 a gallon. We make a model for the cost C of buying x gallons of gas by writing the formula C=.arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage LearningIntermediate AlgebraAlgebraISBN:9781285195728Author:Jerome E. Kaufmann, Karen L. SchwittersPublisher:Cengage Learning
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL