Three friends race their remote-control cars around a racetrack. The graph below sho Remote-Control Cars Red car 70 60 50 40 Blue car (3, 30) 30 (1, 20)| 20 Yellow car 10 (2, 10) 0 1 2 3 Time (seconds) The graph of which car has the greatest constant of proportionality? A Yellow car Blue car Red car D The constant of proportionality for each car cannot be compared. Distance (meters)

Three friends race their remote-control cars around a racetrack. The graph below sho Remote-Control Cars Red car 70 60 50 40 Blue car (3, 30) 30 (1, 20)| 20 Yellow car 10 (2, 10) 0 1 2 3 Time (seconds) The graph of which car has the greatest constant of proportionality? A Yellow car Blue car Red car D The constant of proportionality for each car cannot be compared. Distance (meters)

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter12: Algebra Of Matrices

Section12.CM: Cumulative Review Problem Set

Problem 114CM

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In Exercises 15-17, find a mathematical model that represents the statement. (Determine the constant of proportionality.) A varies jointly as xandy.A=500whenx=15andy=8.
Tori buy 5 apples for every 3 oranges she purchases. Can this context have a constant of proportionality? Why or why not?
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The chart below gives price and fuel efficiency for the Ford Escape, a small SUVs with conventional or hybrid engines from a web search on February 21, 2022. Car Model Price Average Mileage (mpg) Ford Escape S model (conventional) $26,510 28 city/ 34 highway Ford Escape SE (hybrid) $29,170 44 city/ 37 highway What is the annual cost to drive the conventional Ford Escape for 10,000 miles (5,000 city driving and 5,000 highway) if gas costs $3.57 per gallon? What is the annual cost to drive the hybrid model Ford Escape for 10,000 miles (5,000 city driving and 5,000 highway) if gas costs $3.57 per gallon? How much money would you save annually if you bought the hybrid model instead of the conventional Ford Escape, assuming you drove 10,000 miles each year? How many years of driving the more fuel-efficient hybrid would it take for you to make up difference in its higher sticker price over the price of the conventional model?
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