the answer to this problem is (1,3)
Answer:
5 cats
Step-by-step explanation:
d/c = 5/1
d = 25 Substitute in the proportion
25/c = 5/1 Multiply both sides by c
25 = 5c/1
25 = 5c Divide each side by 5
c = 5
There are five cats.
Does that mean solve for y? If so, here it is:
5x + 2y = 11.
Move the x term by subtracting.
2y = -5x + 11
Divide by 2.
y = -5/2x + 11/2
For this case we have that each student takes 8 \ frac {3} {4} minutes to perform and play 3 songs. Then, we convert the mixed number to a fraction:

Thus, each student takes
minutes.
If there are 9 students in the recital then we have:
minutes.
Thus, the recital lasts at least 78.75 minutes.
Answer:
The recital lasts at least 78.75 minutes.