Substitution....
y = 5x - 40...so we sub in 5x - 40 in for y in the other equation
y - 3x = -24
5x - 40 - 3x = -24
5x - 3x = -24 + 40
2x = 16
x = 16/2
x = 8
y = 5x - 40
y = 5(8) - 40
y = 40 - 40
y = 0
solution is (8,0)
Answer:
The angle is 112 degrees and the supplement is 68 degrees.
Step-by-step explanation:
Let the angle’s measure be represented by x and the supplement’s measure be represented by y. Since supplementary angles add to 180 degrees, x + y = 180.
Since the supplement is 44 degrees less than the angle,
y + 44 = x
We can substitute y + 44 = x for x in the first equation, since they are equivalent.
y + 44 + y = 180
2y + 44 = 180
2y = 136
y = 68
Substitute 68 for y in one of the original equations and solve.
68 + 44 = x
x = 112
We can plug in the values of this point to find b
-4 = 17 (3) +b
We will multiply 17 times 3
-4 = 51 + b
We then subtract by 51 on both sides
-55 = b
So the full equation will be
y = 17x - 55
Answer:
The rate of change is 3
Step-by-step explanation:
The slope is the rate
The slope is 3
Answer:
x=90/7
Step-by-step explanation:
7x=90
x=90/7