Answer:
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Step-by-step explanation:
Given
$1000 for 9 days
$750 for 10 days
$850 for 4 days
$900 for other days
Required
Compute the daily average
First, we need to compute the number of days her balance is $900
Assuming the billing cycle is 30 days;
![Number\ of\ days = 30 - (9 + 10 + 4)](https://tex.z-dn.net/?f=Number%5C%20of%5C%20days%20%3D%2030%20-%20%289%20%2B%2010%20%2B%204%29)
![Number\ of\ days = 30 - 23](https://tex.z-dn.net/?f=Number%5C%20of%5C%20days%20%3D%2030%20-%2023)
![Number\ of\ days = 7](https://tex.z-dn.net/?f=Number%5C%20of%5C%20days%20%3D%207)
The Average is then calculates using:
![Average = \frac{\sum fx}{x}](https://tex.z-dn.net/?f=Average%20%3D%20%5Cfrac%7B%5Csum%20fx%7D%7Bx%7D)
![Average = \frac{1000 * 9 + 750 * 10 + 850 * 4 + 900 * 7}{9 + 10 + 4+ 7}](https://tex.z-dn.net/?f=Average%20%3D%20%5Cfrac%7B1000%20%2A%209%20%2B%20750%20%2A%2010%20%2B%20850%20%2A%204%20%2B%20900%20%2A%207%7D%7B9%20%2B%2010%20%2B%204%2B%207%7D)
![Average = \frac{26200}{30}](https://tex.z-dn.net/?f=Average%20%3D%20%5Cfrac%7B26200%7D%7B30%7D)
![Average = 873.333333333](https://tex.z-dn.net/?f=Average%20%3D%20873.333333333)
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<em> --- Approximated</em>
Answer:
10 miles
Step-by-step explanation:
d=√8²+6²=√100= 10 miles
Answer:
0,05
Step-by-step explanation:
1)First, Let’s find the mean of the data table
12 + 10 + 12 + 6 + 8 + 4 + 2 + 12 = 66
66 ÷ 8 = 8,25
2)12 - 8,25 = 3,75
10 - 8,25 = 1,25
12 - 8,25 = 3,75
6 - 8,25 = -1,75
8 - 8,25 = -0,75
4 - 8,25 = -3,75
2 - 8,25 = -5,75
12 - 8,25 = 3,75
3) 3,75 + 1,25 + 3,75 - 1,75 - 0,85 - 3,75 - 5,75 + 3,75 = 0,4
0,4 ÷ 8 = 0,05
Answer:
Step-by-step explanation:
1)y=-6x-14 ---------(i)
-x-3y=-9 ---------- (ii)
Substitution method:
Substitute y value in equ (i)
-x -3*(-6x-14) = -9
-x - 3*-6x -3*(-14)= -9
-x + 18x + 42 = -9
17x = -9 -42
17x = -51
x = -51/17
x = -3
Substitute x value in equation (i)
y = -6*-3 -14
y =18-14
y = 4
Answer:
solution set of f(x) = g(x) is x∈{0,1}
Step-by-step explanation:
For all exponential functions b^x,
b^0 is always 1, and b^1 is always b.
f(x) = -3/4 x + 2
g(x) = (1/4)^x + 1
g(0) = 2, f(0) = 2
g(1) = 5/4, f(1) = 5/4