Let the number = x
You have 15 times the number so that is 15x
9 less would be subtracting 9:
15x -9
Is 6 means the equation equals 6:
The equation is: 15x-9 = 6
The distance would be 9.
Hope I could help.
Answer:
4.53
Step-by-step explanation:
Given the data :
4, 5, 10, 11, 15
The mean = 9
The standard deviation of a sample :
s = √[Σ(x - mean)²/(n-1)]
s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]
s = √(25+16+1+4+36)/4
s = √20.5
s = 4.527
s = 4.53
Answer:
The price before tip ,Mrs. Henry's move is 351.9 $
Step-by-step explanation:
Given:
Total bills of 414 $ in which 15 % is tip
To Find:
What is the price before tip, Mrs. Henry's move
Solution:
Total bill amount is 414$
And 15 % is tip bill and 85 % is bill before tip
So,
85 % of total bill can give price before tip
OR
calculate 15 % and subtract from total bill.
So 85 % of 414=0.85 *414
=351.9 $
OR
15 % 414=0.15 *414
=62.1 $
Price before Tip is =414$ -62.1 $
=351.9$
So BY Both ways we can get same answer i.e. 351.9 $
