How do you do 18?The math lesson is linear systems in three variables 18. Adrian, Nathan, and Brian bought lunch from the concession stand. Adrian paid $5.50 for a burger, mes,and a drink; Nathan paid $4.00 for a burger and a drink; and Brian paid $4.25 for a burger and fries.a. Write three equations modeling the cost of their lunches using b, f, and d to represent the cost of aburger, fries, and a drink.b. Solve the system of equations to determine the cost of each food item.19. Larry has a total of 24 nickels, dimes, and quarters whose total value is $3. The number of nickels equalsthe sum of the number of dimes and quarters.a. Write three equations modeling the total number of coins, the value of the coins, and the relationshipbetween the number of nickels and other coins.b. Solve the system of equations to determine how many of each coin Larry has.B. ExercisesSolve each system.20. x + 2y + z = 8y-3z = 921. 2x + 3y – z = 52y + 5z = 11z =-2

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18. Adrian, Nathan, and Brian bought lunch from the concession stand. Adria and a drink; Nathan paid $4.00 for a burger and a drink; and Brian paid $- a. Write three equations modeling the cost of their lunches using b, f, and burger, fries, and a drink.

18. Adrian, Nathan, and Brian bought lunch from the concession stand. Adria and a drink; Nathan paid $4.00 for a burger and a drink; and Brian paid $- a. Write three equations modeling the cost of their lunches using b, f, and burger, fries, and a drink.

Intermediate Algebra

19th Edition

ISBN:9780998625720

Author:Lynn Marecek

Publisher:Lynn Marecek

Chapter4: Systems Of Linear Equations

Section4.2: Solve Applications With Systems Of Equations

Problem 4.32TI: Translate to a system of equations and then solve: Erin spent 30 minutes on the rowing machine and...

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