Maya had $27. She spent all the money on buying 3 burgers for $x each and 2 sandwiches for $y each. If Maya had bought 2 burgers
and 1 sandwich, she would have been left with $11. A student concluded that the price of each burger is $5 and the price of each sandwich is $6. Which statement best justifies whether the student's conclusion is correct or incorrect?
The student's conclusion is correct because the solution to the system of equations 3x + 2y = 11 and 2x + y = 16 is (5, 6).
The student's conclusion is incorrect because the solution to the system of equations 3x − 2y = 11 and 2x − y = 16 is (5, 6).
The student's conclusion is correct because the solution to the system of equations 3x + 2y = 27 and 2x + y = 16 is (5, 6).
The student's conclusion is incorrect because the solution to the system of equations 2x + 3y = 27 and x + 2y = 16 is (5, 6).
2x+y=16 |*2 4x+2y=32 3x+2y=27 ---------------- 4x-3x=32-27 x=5 2*5+y=16 10+y=16 y=16-10 y=6 The solution is (5,6) The answer is the third, it is correct
Find the average of the list of numbers. - 18, - 29, - 17, - 12find the average of the list of numbers. - 18, - 29, - 17, - 12find the average of the list of numbers. - 18, - 29, - 17, - 12
