Answer:
C. no solutions
Step-by-step explanation:
Subtract the first equation from the second and you get ...
(2x -y +2z) -(x +2y -z) = (6) -(3)
x -3y +3z = 3
This equation is of a plane parallel to the plane of the third equation. There are no points of intersection, hence no solution.
Answer:
68 degrees
Step-by-step explanation:
To get the interior angle, we use an important triangle principle
The principle is that the sum of the opposite interior angles equal the exterior angle
Let the second interior angle be x
x + 51 = 119
x = 119-51
x = 68
Answer:
x = 1
Step-by-step explanation:
-2x - 16 = -14 - 4x
-2x + 4x = -14 + 16
2x = 2
x = 1
Answer:
0.422
Step-by-step explanation:
(0.45)(0.62) + (0.55)(0.26) = 0.422
9514 1404 393
Answer:
36
Step-by-step explanation:
The equation for Ronny's total sales can be written as ...
450 +5x = 630 . . . . . where x is the number of additional mugs to be sold
5x = 180 . . . . . . . subtract 450
x = 36 . . . . . divide by 5
Ronny needs to sell 36 more coffee mugs to reach his sales goal.