Answer:
70
Step-by-step explanation:
Answer:
x + y = 20
1.5x + 5y = 54.50
Solve the equations and get: x = 13 ∧ y = 7
Marcy bought 13 books and 7 CDs.
Answer:
You'll need $2,500 in sales this week to end up with $600 in income for the week.
Step-by-step explanation:
Let s represent the dollar amount of the total sales for the week.
The commission earned on such sales is 1/5, or 0.20, of s:
Commission: 0.20s
Then the correct expression for your weekly income is:
$100 + 0.20s = $600.
Solving for s, subtract $100 from both sides. Then 0.20s = $500, and through division we get s = $2,500.
You'll need $2,500 in sales this week to end up with $600 in income for the week.
Answer:
6 values n
Step-By-Step Explanation:
If n =1 then 6n = 61
n =2 = 62
n = 3 = 63
n = 4 = 64
n = 5 = 65
n = 6 = 66
These are the only ones that work [ 67/7 , 68/8, 69/9 and 60/0 are not integers (the last is undefined)]
So.....6 values of n
Answer:
D. 14.32
Step-by-step explanation:
The formula for standard deviation is:
The mean μ is 33.
The (x minus μ) squared are 361, 49, 49, 361 respectively.
So that the SD = 
