Answer:
Step-by-step explanation:
The missing figure is attached.
The perimeter of a rectangle is:
Where "l" is the lenght and "w" is the width.
You can identify in the figure that:
Then, knowing the perimeter of the rectangle, you can make the subsitution into the formula:
Now you must simplify and solve for "z"
Finally, substituting the value of "z" into , you get:
Answer:
10
Step-by-step explanation:
For movie mania:
Sign-up fee = $ 20
Rent for 1 DVD = $ 4.00
For Hurricane video:
Sign-up fee = 0
Rent of 1 DVD = $ 6.
Let be the number of DVDs to rent in order for both stores to charge the same.
For movie mania, charge to rent DVDs = Sign-up fee + rent of
DVDs
=20+4n
For Hurricane movie, charge to rent DVDs = Sign-up fee + rent of
DVDs
=0+6n=6n
Now, for both stores to charge the same, both the charges must be equal, we have
6n=20+4n
Hence, the required number of DVDs to rent is 10 in order for both stores to charge the same.