The ratio of quarters to dimes in a coin collection is 5 : 3. you add the same number of new quarters as dimes to the collection. a. is the ratio of quarters to dimes still 5 : 3? yes no question 2 b. if so, illustrate your answer with an example. if not, show why with a "counterexample." if the collection has 50 quarters and 30 dimes, when 10 of each coin are added, the ratio remains the same. if the collection has 50 quarters and 30 dimes, when 10 of each coin are added, the new ratio of quarters to dimes is 3 : 2. if the collection has 5 quarters and 3 dimes, when 2 of each coin are added, the ratio remains the same if the collection has 5 quarters and 3 dimes, when 2 of each coin are added, the new ratio of quarters to dimes is 1 : 1. 15 of 18 answered need ? check answer next

on a coordinate grid, point a is at (−4.0, −2.4) and point b is at (4.0, −2.4). point b is a reflection of point a across the –axis. input either a lowercase x or i think is the right awnser

step-by-step explanation:

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: