Answer number 3-10. Let's Dig InActivity 1. Determine whether the relation between the quantities involve direct(D) orinverse(l) variation.1.KThe price per kilogram of rice and the number of kilograms of rice to buy with P500.4.The number of persons and the amount of food consumption.The number of family members and the length of time to consume one sack of rice.5.6.The quality of the goods and the price of these goods.The height of a person and his weight.7.8.The circumference of a circle and its diameter.9.The time elapsed for a car to cover a distance and the speed of the car.10.The amount of interest on a principal amount and the length of time the principal isinvested.123

Topic- direct or inverse relationship Note - as per our guideline if more than three subparts…

Answered: The price per kilogram of rice and the…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter8: Graphing Quadratic Functions

Section: Chapter Questions

Problem 30CR

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A printer quotes a price of $7; 500 for printing 1,000 copies of a book and $15; 000 for printing 2,500 copies.Assuming a linear relationship and that 2000 books are printed:i. Find the equation relating the total cost y to x, the number of books printed.ii. What is the variable cost ?iii. What is the xed cost ?iv. What is the variable cost per book ?v. What is the average cost per book ?vi. What is the marginal cost of the last book printed ?
The marketing manager at Levi-Strauss wishes to find a function that relates the demand D for men’s jeans and p, the price of the jeans. The following data were obtained based on a price history of the jeans. (a) Does the relation defined by the set of ordered pairs (p, D) represent a function?(b) Draw a scatter diagram of the data.(c) Using a graphing utility, find the line of best fit that models the relation between price and quantity demanded.(d) Interpret the slope.(e) Express the relationship found in part (c) using function notation.(f) What is the domain of the function?(g) How many jeans will be demanded if the price is $28 apair?
Determine which score corresponds to the higher relative position.Which score has a higher relative position, a score of 70.8 on a test for which x̅ = 65 and s = 6, or a score of 261.6 on a test for which x̅ = 240 and s = 21?
Ben collected 12 kilograms of plastic bottles to recycle for his school project. He plans tocollect an additional 4 kilograms each week.a. What is the relation of y (total collected bottles) and x (number of weeks)?b. How many kilograms of plastic bottles will Ben have after 49 days?c. How long will it take him to collect 60 kilograms of plastic bottle?4. The pollution level in the center of a city at 4 am is 22 parts per million and it grows in linearfashion by 19 parts per million every hour. If y is pollution and t is time elapsed after 4 am,a. Determine the equation that relates y with t.b. What is the pollution level at 2:30 pm?
3- Suppose a student carrying a flu virus returns to an isolated college campus of 8000students. If it is assumed that the rate at which the virus spreads is proportional not onlyto the number x of infected students but also to the number of students not infected.a) determine the number of infected students after 6 days if it is further observed thatafter 4 days x(4)= 50.b) What happens after a long time? Analyze your result using a plot of the generalsolution
What is the rate of change for Relation C? Write your answer as a fraction in lowest terms.
OHaganBooks.com's cost of selling x books a week is C ( x ) =0.012x 2 −2.3x +4,736 dollars. What is the marginal cost at a sales level of 400 books? Do not round.
Data was collected on the number of pairs of shoes people on and the number of miles they walk per week. R-Squared =0.38. Then 38% of the variation in miles walked can be explained by the linear relationship between the number of shoes own and the miles walked. 62% is attributable to other favtors. True Or False
A copy machine dealer has data on the number x of copy machines at each of 89 customer locations and the number y of service calls in a month at each location. r was found to be 0.86. About what percent of the variation in the number of service calls is explained by the linear relation between the number of service calls and number of machines? * 86% 93% 74% 43% none of the above
A researcher wants to determine if the exam scores of the students are dependent on the length of time spent in studying the subject. Ten students in a certain class were taken and the results are shown in the table below where X is the time spent in studying the subject in hours and Y is the examination scores.Which of the following statements best describes the coefficient of variation? * 79.44% of the total variation in the time spent in studying the subject is explained or accounted for by its linear relationship with the examination score 63.11% of the total variation in the time spent in studying the subject is explained or accounted for by its linear relationship with the examination score. 79.44% of the total variation in the examination score is explained or accounted for by its linear relationship with the time spent in studying the subject. 63.11% of the total variation in the examination score is explained or…
OHaganBooks.com's cost of selling x books a week is C(x)=0.006x^2+2.2x+3,651 dollars. What is the marginal cost at a sales level of 400 books? (Do not round.)
Find the value of y between the points (2, y) and (5, − 1) with slope − 3.

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