Answer:
y=-3
Step-by-step explanation:
5x+7y=-31
(-) 5x-9y+17
-----------------
16y=-48
------------
16 16
y=-3
Answer: You start to ascend
Explanation:
Since you are walking due south and the positive y-axis points north, the y-coordinate decreases.
Let

= y-coordinate after walking due south

= z-coordinate (or the height) after walking due south
So, the point where you stand after walking due south has a coordinate of

. Moreover,

Since the y-coordinate decreases after walking due south and

,

So, the height after walking due south exceeds 1,206 meters, which is the previous height before walking due south. Therefore, if you walk due south from point with coordinates (100, 120, 1206), you are ascending.
Answer:
112
Step-by-step explanation:
cause if you calculated it it will be 112.2222 so the closest thing is 112
Ron would have to work out 56 minutes to burn 392 calories
Answer:
Step-by-step explanation:
First use distributive property: a(b + c) = a*b + a*c
3n - 6 = -8(6 + 5n)
3n - 6 = 6 * (-8) + 5n *(-8)
3n - 6 = -48 - 40n
Now add 40n to both sides
3n - 6 + 40n = -48 - 40n + 40n
43n - 6 = -48
Now add 6 to both sides
43n - 6 + 6 = -48 + 6
43n = -42
n = -42 /43