Answered: 5) If x dollars is deposited every four…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter8: Areas Of Polygons And Circles

Section8.CR: Review Exercises

Problem 40CR: Sue and Daves semicircular driveway is to be resealed, and then flowers are to be planted on either...

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Transcribed Image Text:lve the problem. adul 1) There were 480 people at a play. The admission price was $2 for adults and $1 for children. The =Children admission receipts were $770. How many adults and how many children attended? A) 192 adults and 288 children C) 95 adults and 385 children 290 adults and 190 children D) 190 adults and 290 children 290+c=480 A=290 C=190 2) A store is discounting all regularly priced items by 30%. (i) Find a function f that computes the sale price of an item having a regular price of x. (ii) If an item normally costs $199.54, what is its sale price? f(x)=x-3 (199.54) B) f(x) = 0.3x; $59.86 f(x)=59.86 Df(x)= x -0.3x; $139.68 A) f(x)= x - 30; $169.54 C) f(x) = x - 0.3; $199.24 (a+c=480) 2a+c=110 199.54-59.86E739.68 of money you will sperid 3) Your company uses the quadratic model y = -4.5x2 + 150x to represent the average number of new customers who will be signed on (x) weeks after the release of your new service. How many new customers can you expect to gain in week 14? A1218 customers B) 609 customers D) 2037 customers -amount 9=4.5 (14) +150 (14)=1218 4) Let f(x) compute the cost of a rental car after x days of use at $50 per day. What does f-1(x) compute? B) The cost of rental for x days A) The number of days rented for 50 dollars C) The cost of rental for 50 days f(x)=Cost of x days The number of days rented for x dollars F(x)= # of days rented for X dollars 5) If x dollars is deposited every four weeks (13 times a year) into an account paying an annual interest rate r, expressed in decimal form, then the amount An in the account after n years can be (1 + r/1313n_ approximated by the formula An = X 20 E r/13 mg of Sodium C) 168 customers If a retirement account pays 9% annual interest, determine how much a 20-year-old worker would have to deposit in this account every 4 weeks in order to have a million dollars at age 65. A) $68.06 B) $124.51 C) $6806.16 D) $12,451.12 Cans 6) Brand A soup contains 883 milligrams of sodium. It is recommended that a person requiring 2000 calories daily consume 2500 mg of sodium or less per day. Graph the function, f, that computes the number of mg of sodium in x cans of soup together with y₁ = 2500, y2 = 5000, y3 = 7500 in [0, 10, 1] by [0, 8000, 1000]. Use the intersection-of-graphs method to find how many cans of soup contain 1, 2, and 3 daily allowances of sodium. en 1) B 6) 2) 5) 3)

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