If you take a number and add a zero to the right and subtract the result from 143, you'll get three times the original number. what is the number

11

Step-by-step explanation:

Let the number be x. If zero is added to the right of the number, this is equivalent to multiplying the number by 10

Hence x0 = 10x

143 - 10x = 3x

collect like terms

3x + 10x = 143

13x = 143

x = 143/13

x = 13

The number is 11.

for the points! : )

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: