Answer:
1.Given : Inequalities and
To find : Solve the system of inequalities by graphing ?
Solution :
Let the equation 1 -
Equation 2 -
Plot these equation in the graphing tool,
Equation 1 is shown by red dotted line.
Equation 2 is shown by blue dotted line.
The intersection point of the equations is the solution of the system i.e. (0,-1).
Refer the attached figure below.
The solution of inequalities is at (0,-1).
2. Y=5-2x/3
Step-by-step explanation:
28 to 42 means 28/42
We now reduce 28/42 to lowest terms.
28 ÷ 7 = 4
42 ÷ 7 = 6
We now have 4/6.
We now reduce 4/6.
4 ÷ 2 = 2
6 ÷ 2 = 3
Final answer: 2/3
Answer:y=6.61,x=-6.46
Step-by-step explanation:
3x+7y=-26(×5)
-
5x+3y=-14(×3)
=15x+35y=-130
-
15x+9y=-42
subtracting the 2 equations =15x-15x+35y-9y=-130-(-42)
=26y=172
y=172÷26
y=6.61
substitute y in the first equation=3x+6.61=-26
3x=-26+6.61=-19.39
x=-19.39÷3
x=-6.46
