You could
create a equation such below:
y= 50x+20
Next, put
12 in both y=50x+20 and y=15x+80
Then,
y=50x+20=50 · 12+ 20=600+20= 620
y=15x+80=15 · 12+ 80=180+80= 260
Compare
these two, it's clearly that the second one is cheaper
Answer:
The camera in the second store is cheaper.
Answer:
Step-by-step explanation:
Tbh bro u need to use photo math
Answer:
45
Step-by-step explanation:
Use the geometric sum formula for in infinite sum. 20 terms of this basic formula is close enough The 20th term is 8.6 * 10^-10 which means this goes out to a number with 9 zeros after the decimal and before the 8.
Put another way, the tenth number of this series is the only one affected.
When you use a spreadsheet, it seems to know that the answer is 3/2 as the solution to the sum.
Solution.
Sum = a / (1 - r)
a = 1
r = 1/3
Sum = 1 / (1 - 1/3)
Sum = 1 // 2/3
sum = 3/2
Now you can worry about the 30.
30 * sum(1/3)^n = 30* 3/2 = 45
If there is something you want more information on, leave a note.
Which expression is equivalent to 
Answer:
m^2/n
Step-by-step explanation:
Given.
I assume this is your expression:
The expression is 
Now simplify the expression by multiplying the power.
So, the expression is equivalent to 
Mean is just the average of all of them
So... 5 + 4 + 18 + 19 + 12 + 20 + 12 + 12 = 102
Then you divide that number by the amount of numbers you have so 102 / 8 = 12.75 or rounding it up to 13
For median you have to first put them in order from smallest to largest.
So 4 5 12 12 12 18 19 20
Then you have to find the middle number between them but in this case we have two... 12 and 12. Since they're the same number, the median is 12.
