Siobhan wants to have a beach party in January. Her parents said she can use the garage, which is 36 feet long and 20 feet wide. If she wants to cover the floor with 2 inches of sand, how much sand does she need?
A. 120 cubic feet
B. 720 cubic feet
C. 1440 cubic feet
D. 4320 cubic feet
36 * 20 = 720
720 * 2 = 1440
if all dimensions are in feet, the height of sand is 1/6 foot
So the volume is 36*20/6 = 120 ft^3
I'm so confused. Where did you get the six from, to divide with 720?
do you read what I write?
2 inches of sand is 1/6 foot!
To find out how much sand Siobhan needs, we can calculate the volume of sand required to cover the floor. First, we need to find the area of the floor by multiplying the length and width of the garage.
The area of the garage floor = 36 feet * 20 feet = 720 square feet
Next, we need to determine the volume of sand needed. Since we want to cover the floor with a thickness of 2 inches, we need to convert the thickness to feet.
There are 12 inches in a foot, so 2 inches is equal to 2/12 = 1/6 feet.
Now we can calculate the volume of sand by multiplying the area of the floor by the thickness.
Volume of sand = Area of floor * Thickness
= 720 square feet * (1/6) feet
= 720/6
= 120 cubic feet
Therefore, Siobhan needs 120 cubic feet of sand to cover the floor with a thickness of 2 inches.
So, the correct answer is A. 120 cubic feet.