The coordinates of the top of a tree are (-3,8), and an acorn is attached to the tree at (-1,5). if we know that the acorn lies exactly halfway between a squirrel and the top of the tree, what are the coordinates of the squirrel?

Let's say that the coordinates of the squirrel are: (x, y)

Since the coordinates of the acorn is halfway, between the tree and the squirrel, that means the acorn is the midpoint.

To work out the midpoint you do:

(sum of x-coordinates) divided by 2,  (sum of y coordinates) divided by 2.

We can use this to form an equation .

So the sum of the x coordinates of the tree and the squirrel = -1   :

x-coordinates of the squirrel:

                  (now solve for x)

y-coordinates:

                  (now solve for y)

So the coordinates of the squirrel are: (1, 2)

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(1, 2)

The real answer is 390.804878

You round it to 3 figs so the answer will be =391