c) You must rent 5 movies from each company to have equal bills.
d) The dollar amount would be $168.95 when the bills are equal which can be determined by putting x=5 in both function.
Step-by-step explanation:
Given,
Yearly charges of Letter A = $129
Per movie rent = $7.99
Let,
x be the number of rental movies.
A(x) = Yearly charges + Per movie rent*Number of movies rented
A(x) = 129 + 7.99x
Yearly charges of YR = $144
Per movie rent = $4.99
Y(x) = 144+4.99x
c) Solve the system of equations to determine how many movies you must rent from each company to have equal bills.
For equal bills;
A(x) = Y(x)
Dividing both sides by 3
You must rent 5 movies from each company to have equal bills.
d) What would be the dollar amount when the bills are equal? How did you get that answer?
We will use x=5 to check the dollar amount.
The dollar amount would be $168.95 when the bills are equal which can be determined by putting x=5 in both function.
Keywords: functions, addition
Learn more about functions at:
#LearnwithBrainly
The formula for exponential growth is y=a(1+r)
. Where a is the initial value when time is 0 (100 in this case). r is the growth rate, we can see that the growth is 10%. And x is how much time has passed, we want to find out how many trucks after 9 years.
So we would plug the values in to get y=100(1+.1)
. Solving this gives us 235.79, so we would round up to 236, and our answer would be 236 trucks registered in the city in year 9.
Edit: The x and the 9 are exponents, the formatting made them look a bit weird.
ertificates 6.00% per annum ---x
AA bond 11.00% per annum ---y
x + 1 y= 160000 ------------------------1
6.00% x + 11.00% y= 15600
Multiply by 100
6 x + 11 y= 1560000.00 --------2
Multiply (1) by -6
we get
-6 x -6 y= -960000.00
The number of dots tells us how many times we need to add the actual number underneath the dots. So you need to use both.
<h3>
Which number should you use for the mean?</h3>
Let's suppose we have the next set:
{2, 2, 2, 4, 5, 5, 6}
If you graphed it in a dot plot, then you will have:
- 3 dots above the number 2.
- 1 dot above the number 4.
- 2 dots above the number 5.
- 1 dot above the number 6.
A total of 7 dots.
To find the mean, we just compute:
So the number of dots tells us how many times we need to add the actual number underneath the dots. In conclusion, to find the mean you need to use both, the number of dots and the number underneath.
If you want to learn more about dot plots:
brainly.com/question/15853311
#SPJ1
