Answer:
x = 8/5 or 1.6
Step-by-step explanation:
The bold marks indicate the steps done.
x - 1 = 6x - 9
- 1 = 6x - x - 9
-1 = 5x - 9
-1 + 9 = 5x
8 = 5x
8/5 = x
Answer:
65 ft by 39 ft
Step-by-step explanation:
Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is

The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is

From the first equation,

Substitute it into the area expression:

Find the derivative:

Equate it to 0:

Then

Answer:
2 hours and 12 seconds or 3:48
Step-by-step explanation:
Answer:
Derek
Step-by-step explanation:
Answer: Olga's solution is incorrect
x + 7x is the same as 1x + 7x
7x2 is the same as 7x. x
x + 7 x simplifies to 8x
Step-by-step explanation: