An animal shelter spends $4.50 per day to care for each bird and $8.50 per day to care for each cat. Joshua noticed that the shelter spent $173.50 caring for birds and cats on Tuesday. Joshua found a record showing that there were a total of 27 birds and cats on Tuesday. How many birds were at the shelter on Tuesday?

76 birds hope this helps

Step-by-step explanation:

Let x = the number of birds

Let y = the number of cats

x + y = 35       y = 35 - x

4.50x + 8.50y = 221.50       Multiply the whole equation by 100.

450x + 850y = 22150

450x + 850(35 - x) = 22150

450x + 29750 - 850x = 22150

-100x = -7600

x = 76 birds

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: