Answer: When x=2 and z = 1, then the value of y =4.
Step-by-step explanation:
Given: y varies directly as x and z i.e. 
(i) , where k is the proportionality constant.
Put Y=40 ,x =5 and z = 4, then we get
Required equation: 
[Put value of k in (i)]
Now put x=2 and z = 1, then we get
Hence, when x=2 and z = 1, then the value of y =4.
The answer is y=24x I hope this helps
Answer: This question doesn't have an answer.
Step-by-step explanation:
Answer:
2.25
Step-by-step explanation:
You have to subtract 2.13 from 4.38
Example: 4.38-2.13
Answer:
let the third side be x
Using pythagoras theorem we get,
(58)^2 = (42)^2 + (x)^2
3364=1764+x^2
x^2=3364-1764
x^2= 1600
x=√(1,600)
x=40
