Answer:
x - 7
Step-by-step explanation:
Because Julian is 7 inches shorter than his sister, and his sister's height is x, if we subtract 7 from x, we get Julian's height, x - 7.
Place values:
As each is in a different place value, when we add them neither will affect the other, meaning:

Answer: B 4.39
Answer:
Step-by-step explanation:

Answer:
The answer rounded to the nearest whole number is 1729
Step-by-step explanation:
Set it up like this: Percent in fraction form = x over total
So: 34/100 = x/5086
You then multiply: 34 x 5086 = 172924
Then divided that number by 100: 172924 divided by 100 = 1729.24
Then round the number to the nearest whole number: 1729
Hope this helps good luck!
Answer:
a) 217
b) 1351
c) 5403
Step-by-step explanation:
Given that:
confidence interval (c) = 0.95

The Z score of
is from the z table is given as:

Range = $45000 - $30000 = $15000
The standard deviation (σ) is given as:

Sample size (n) is given as:

a) E = $500
≈ 217
b)
≈ 1351
c)
≈ 5403