Answer:
<u>The number is 170</u>
Step-by-step explanation:
Let's solve for x, this way:
x = A number that decreased by 20% of itself, the result is 136
20% = 0.2
x - 0.2x = 136 (Like terms)
0.8x = 136
x = 136/0.8 (Dividing by 0.8 at both sides)
x = 170
Let's prove that x = 170 is correct
170 - 0.2 (170) = 136
170 - 34 = 136
136 = 136
We proved that x = 170 is correct
Answer:
y=1/2x-4
Step-by-step explanation:
y-y1=m(x-x1)
y+3=1/2(x-2)
y+3=1/2x-1
y=1/2x-4
Answer:
2=3
Step-by-step explanation:
Answer:
m = 4
Step-by-step explanation:
Points on the graph: ( -3, -3) and ( -2, 1)
Slope:
m=(y2-y1)/(x2-x1)
m=(1+3)/(-2+3)
m=4/1
m = 4