You need to replace the molding around a floor that is 15 ft. long & 23 ft. 6 in. wide. The molding sells for $0.50 per ft.. How much will the molding cost?
Perimeter: 2*15 + 2*23.5 feet.
cost=perimeter*.5 dollars
$38.50
To calculate the cost of the molding, you need to find the perimeter of the floor and then multiply it by the cost per foot.
Step 1: Find the perimeter of the floor
The perimeter of a rectangle is calculated by adding the lengths of all its sides. In this case, the floor is 15 ft long and 23 ft 6 in wide. To convert the width from feet and inches to feet, we need to convert the inches to feet.
The width of 23 ft 6 in can be written as 23 + (6/12) ft. Simplifying further, we get 23.5 ft.
Now, add the length and width to find the perimeter:
Perimeter = 15 ft + 23.5 ft
Step 2: Calculate the cost of molding
Given that the cost of molding is $0.50 per foot, we can multiply the perimeter by the cost per foot to find the total cost.
Total cost = Perimeter x Cost per foot
Now let's substitute the values and calculate:
Total cost = (15 ft + 23.5 ft) x $0.50 per ft
Adding the lengths:
Total cost = 38.5 ft x $0.50 per ft
Multiplying:
Total cost = $19.25
Therefore, the molding will cost $19.25.