Problem Solving Guess and Check: Place 40 checkers in two stacks so that, if five checkers are moved from the taller stack to the shorter one, there will be the same number of checkers in each stack. How many checkers were in the taller stack? PLEASE ANSWER THIS URGENTLY

10

Step-by-step explanation:

6 in the first, and 12 in each of the other

That means 6 + 12 + 12 = 30

Since there are three stacks, divide 30 by

3

30/3 = 10

There will be 10 books in each stack

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when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: