Question

Dennis is putting a fence around his pool. How much will he spend on fencing if it costs $15 a foot?

a.
15
×
pool perimeter
15×pool perimeter
b.
15
+
pool perimeter
15+pool perimeter
c.
15
÷
pool perimeter
15÷pool perimeter
d.
15
×
pool area
15×pool area

Answer 1

To determine the cost of the fence, multiply the pool's perimeter by the cost per foot, which is $15. Hence, the correct formula is 15 × pool perimeter.

Step-by-step explanation:

The cost to put a fence around the pool will depend on the perimeter of the pool. If the cost is $15 per foot, we need to multiply the perimeter of the pool by this cost. Therefore, the correct formula to calculate the total cost of the fence is Option A: 15 × pool perimeter.

For example, if the pool's perimeter is 100 feet, Dennis will spend:
15 dollars/foot × 100 feet = 1500 dollars on fencing.