Final answer:
To find the average area of sand at Moon Bay Beach, we multiply the beach's length (7/2 miles) by its average width (1/8 mile), resulting in an area of 7/16 square miles.
Step-by-step explanation:
The question is asking us to calculate the average area of the sand at moon bay Beach. To find the area, we multiply the length of the beach by the average width of the sand. Given that the length of the sand at moon bay beach is 3 1/2 miles and the average width from the dunes to the water is 1/8 mile, we can use these numbers to find the area.
First, we need to convert the mixed number 3 1/2 to an improper fraction to make the multiplication easier. So, 3 1/2 miles is the same as 7/2 miles. Now, we multiply the length by the width:
Area = Length × Width
Area = (7/2) miles × (1/8) miles
Area = 7/16 square miles
The average area of the sand at moon bay Beach is 7/16 square miles.