Answer:
Part A: 6a = 10.5 and a = 1.75 meters.
Part B: $3.87.
Explanation:
Part A: Diego draws a hexagon with a perimeter of 10.5 meters and each side of the hexagon is the same length.
Now, the hexagon has 6 sides and if each side is of length 'a' meters, then the equation that models the situation is
6a = 10.5 ......... (1) (Answer)
⇒ a = 1.75 meters. (Answer)
Part B:
The total cost of supplies to paint the mural is $38.70. Diego and 9 friends divide the cost equally.
Hence, the total cost will be divided into 10 persons.
Therefore, each person will get
dollars. (Answer)