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## Answers

## BettieZumbrunnen

Wow! This has to handled one step at a time.

Step 1). Find the actual dimensions of the pen.

Step 2). Decide the total amount on longer sides

and the total amount on shorter sides.

Step 3). Work out the costs.

Dimensions of the pen:

"Twice as long as it is wide".

Width = W feet

Length = 2W feet

Perimeter = W + 2W + W + 2W = 6W = 48 feet

Width = W = 8 feet

Length = 2W = 16 feet

Amount on long sides and short sides:

The longer sides are 16 feet.

There are 2 of them.

Total mount on longer sides = 32 feet.

The shorter sides are 8 feet.

There are 2 of them.

Total amount on shorter sides = 16 feet.

Costs:

Longer sides: (32 feet) x ($1.85 per feet) = $59.20

Shorter sides: (16 feet) x ($2.35 per foot) = $37.60

Total cost of material to build the pen = $96.80