The answer is d) none because substituting -1/4x + 5/3 for y in the first equation gives 3x - 3x + 5/3 = 20 so 5/3 = 20 which is not true.
The third option, 100*
making it an abtuse triangle
If incorrect, sorry
Answer:
Correct option is: 9:6:5
Step-by-step explanation:
I'm not sure but hope it helps.
X=8 because add 11 to both sides and it becomes 28=3.5x and divide both sides by 3.5 so x=8
The picture is too small, but which equations can undo each other?
Addition and Subtraction is Inverse Operations
Multiplication and Division is Inverse Operations