X= # of eraser packages = 135
y= # of pencil packages = 85
cost = 2x + 5y = 695
# of items = x+y= 220
2x+5y=695
-2x -2y=-440
3y 255
----- = ------- y=85 x+(85) / 220
3 3 ----- -----
-85 -85
x=135
2(135) + 5 (85) ?695
270+425?695
695+695
Answer:
I could but i'm not all that good, lol.
Step-by-step explanation:
I am personally only doing 10th grade honors math and thus, that is the extent of what I can do. If you need help with math problems, I most certainly can help though.
Answer:
(-7,2)
Step-by-step explanation:
The point (7,-2) when reflected across the x-axis becomes (7, 2). When it is reflected across the y-axis it becomes (-7,2). You can find this because when a point is reflected across the x-axis, its y-coordinate changes its sign. The same is true when reflected across the y-axis. It's x coordinate changes its sign.
A double reflection across both axis changes the sign of each coordinate.