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12. When you reverse the digits in a certain two-digit number you decrease its value by 27. Find the number if the sum of its digits is 7. 13. 14. 3x + 4y = -23 2y -x = -19 2x – 3y = -14 3x - 2y = -6 What is the solution (x, y) to the system of equations above? If (x, y) is a solution to the system of equations above, what is the value of x-y ? A) (-5,-2) A) -20 B (3, -8) B) C) (4,-6) C) -4 D) (9,-6) D) 15. A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was

12. When you reverse the digits in a certain two-digit number you decrease its value by 27. Find the number if the sum of its digits is 7. 13. 14. 3x + 4y = -23 2y -x = -19 2x – 3y = -14 3x - 2y = -6 What is the solution (x, y) to the system of equations above? If (x, y) is a solution to the system of equations above, what is the value of x-y ? A) (-5,-2) A) -20 B (3, -8) B) C) (4,-6) C) -4 D) (9,-6) D) 15. A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Number 12. Elimination
12. When you reverse the digits in a certain two-digit number you decrease its value by 27. Find the number if the sum of its digits is 7. 13. 14. 3x + 4y = -23 2x – 3y = -14 3x – 2y = -6 2y – x = -19 What is the solution (x, y) to the system of equations above? If (x, y) is a solution to the system of equations above, what is the value of x- y ? A) (-5,-2) A) -20 B (3,-8) B) -8 C) (4,-6) -4 D) (9,-6) D) 8. 15. A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was
Transcribed Image Text:12. When you reverse the digits in a certain two-digit number you decrease its value by 27. Find the number if the sum of its digits is 7. 13. 14. 3x + 4y = -23 2x – 3y = -14 3x – 2y = -6 2y – x = -19 What is the solution (x, y) to the system of equations above? If (x, y) is a solution to the system of equations above, what is the value of x- y ? A) (-5,-2) A) -20 B (3,-8) B) -8 C) (4,-6) -4 D) (9,-6) D) 8. 15. A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was
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