Let, the number of robins be "r" the number of cardinals be "c" According to the questions, she saw 5 times as many robins as cardinals, So, we can say that, r = 5c.......................equation (1) Also, the question states that there were a total of 24 birds. So, we can write, r + c = 24................equation (2) Now, substituting the value of r from equation (1), we get, (5c) + c = 24 6c = 24 Dividing both sides by 6 to get c by itself, we get, c = 24 / 6 c = 4 Now, From equation (1) r = 5c r = 5 (4) r = 20
So, the total number of robins(r) was 20 and the total number of cardinals(c) was 4.
Now, The question asks how many more robins did he see than cardinals. So, for that we subtract number of cardinals from number of robins. So, 20 - 4 = 16 So, he saw 16 more robins than the cardinals
She saw 20 robins and 4 cardinals, in all, that makes the 24 birds she saw (5 × 4 cardinals = 20 robins). So subtract 4 from 20 to find out that she saw 16 more robins than she saw cardinals.
The domain of the function is the set of all the values of x that would allow the function to have real values. Since the radicand is x - 3, the value of x cannot be less than 3 because that would make the value of sqrt (x - 3) an imaginary number. Thus, the domain should be all numbers GREATER than or equal to 3.
