Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The number of singers is 
The sample size is 
The number the number of singers who are professional is k = 19
The proportion of professional singers is mathematically represented as

=> 
=> 
The percentage estimate of singers who are professional is


So the math here is 1+1 = 2
A) <span><span>-2x +</span>5y = 18
B) 6x </span><span><span>+4y </span>= -10
Yes, they are simultaneous equations with one solution.
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Answer:
This answer for the provided question is yes.
If its what I think, The answer would be A. 1 1/5
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope this helps!
Step-by-step explanation:
Answer: $ 7.00
Step-by-step explanation:
you multiply 1.15 by 4
and multiply 1.20 by 2
add