Question

Question 4

1 pts
Katherine wants to fence in her 25 by 25 foot yard using wooden split rail fencing. She
does not need any fence along the side of the yard that has her house.
What will the total cost of the fencing be if wooden split rail fencing costs $85 for every
8 feet?

Answer 1

$531.25

Explanation:

The total length of fence required is given by the perimeter of a square:

`P=2l+2w\\l=25ft\\w=25ft\\P=2(25ft)+2(25ft)\\P=50ft`

Since the price is per 8 foot unit of fencing:

`(50ft)/(8ft)=6.25units`

Each unit will cost $85:

Total cost = 6.25 units($85)

Total cost =$531.25

This answer could also be found by calculating the cost per foot of the fencing:
`(85 dollars)/(8ft)=10.625(dollars)/(foot)`

Since 50 feet are needed: 50 ft (10.625
`(dollars)/(foot)`)=$531.25