Answer: 2/5
Step-by-step explanation:
xy^2
--------
5
If x = 2 and y = 1
x * y^2 2 × 1^2
----------- -----------
5 5
2
---
5
Answer:
2) The domain would only include positive integers
Step-by-step explanation:
y cost for x person
x can't be negative or fraction.
54.7 cm because a squared + b squared = c squared
Answer: 60 of the patients are boys.
Step-by-step explanation: According to what is described, 5 in 8 patients are girls, then: 8 - 5 = 3, i.e., 3 in 8 are boys.
Mathematically the proportionality is 
If 160 patients have appointments per month and
are boys:
160.
= 60
Per month, 60 boys have appointments at the medical office.