Answer:
i have made it in above picture
hope it helps
Answer:
200 pencils and 120 pens
Step-by-step explanation:
Let the number of pencils be x while pens be y.
Considering the cost of whole purchase then, we get the equation
0.5x+y=220
Considering the number of items bought, then the equation is
x-y=80
Adding the two equations then we have
1.5x=300
x=300/1.5=200
Consideeing that x-y=80 and x is 200 then
200-y=80
y=200-80=120
Therefore, the pencils were 200 and pens 120 pieces
Y = -3x + 12...the slope here is -3...a parallel line will have the same slope.
y = mx + b
slope(m) = -3
(-1,6)...x = -1 and y = 6
now we sub and find b, the y int
6 = -3(-1) + b
6 = 3 + b
6 - 3 = b
3 = b
so ur parallel equation is : y = -3x + 3 <==