Answer:
-6
Step-by-step explanation:
Answer:
Step-by-step explanation:
1). (B). Replace one equation with the sum/difference of both equation.
System B is
- 4x - 6y = 9 ........ <em>(1B)</em>
-4x + 3x = - x
- 6y + y = - 5y
9 - 4 = 5
- x - 5y = 5 ........ <em>(2B)</em>
2). Yes, both system are equivalent.
Answer:
A. 4:3:5
Step-by-step explanation:
Al ate 1/3, which is 4/12. Barb ate 1/4, which is 3/12. That leaves 5/12 for Calvin to eat.
Sum of all the angles of a quadrilateral is 360
87+100+106 +x =360
x = 360-293 = 67
so A 67 is the answer.
Answer:0.013
Step-by-step explanation: