Letter A company charges a flat rate of $129 (yearly) for AP and $7.99 for each HD movie rental.
1 answer:
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
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Answer:
Length: 7
Width: 4
Step-by-step explanation:
We can create a system of equations for this problem, where is the width and
is the length.
The perimeter of a rectangle is twice its length added to twice its width.
The length is 3 more than the width:
We can now substitute in as
in the equation
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Distribute the first terms:
Combine like terms:
Subtract 6 from both sides:
Divide both sides by 4:
Now we know that w = 4. We can now substitute this inside an equation to find .
Hope this helped!