There follows the formula for "z-score:"
raw score - mean
z = ------------------------------
standard dev
9.1 - 8
Here, the z-score is z = ------------- = 0.344
3.2
Let x = Mrs. D's salary last year
13% = 13/100 = 0.13
6500 is 13 percent of Mrs. D's salary, so:
0.13(x) = 6500
0.13(x)/0.13 = 6500/0.13
x = 50,000
Mrs. D's salary last year was 50,000 dollars.
Answer:
47
Step-by-step explanation:
I think you can chose your own points like (0,296) and (2,592)
Tenth blocks ones blocks
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