Answer: 19
Step-by-step explanation:
The formula to find the sample size is given by :_
Given : Significance level :
Critical value :
The estimated population proportion by using sample :
Margin of error : E=0.025
Now, the required sample size will be :-
<span>(5x+9)^2
= (5x)^2 + 2 (5x) (9) + 9^2
= 25x^2 + 90x + 81
hope it helps</span>
7y - 23 + 23x -16 + 8x - 21
31x + 7y - 60
What is the original problem equal to? You can't go any further unless you know.
The answer will be fg = 7 and fx = 7
Answer:Amount left with Myra is $93.55
Myra saved money $15 a month for 18 months.
So total money saved = Number of months × amount saved in a month.
It means Myra has spent total amount = 46.50 + 129.95 = $176.45
Now remaining amount with her = Total amount saved - Total amount spent
= 270 - 176.45 = $93.55