Question

Linda has a rectangular garden that’s 3x-5 feet by 2x+8. She wants to put a fence around the perimeter of the garden. If each foot of fence costs $5, how much will the total fencing around the garden costs??

Answer 1

Explanation:

The Perimeter, P (feet) = 2 x Width(ft) + 2 x Length(ft)

P = 2*(3x-5) + 2*(2x+8)

P = 6x -10 + 4x + 16

P = 10x + 6 (in feet)

Total cost = P(ft)*(Cost ($/ft)) [The Cost is $5/ft]

Total cost = ((10x + 6)ft)*(5 ($/ft)) = $(50x + 30)

Since no value is given for x, this is the closest we can get to an answer.

[I notice that x must be greater than (1 2/3), otherwise, (3x-5) would be negative. Perhaps a negative distance is valid for the Klingons, but let's assume this is on Earth.]