A developer has a property that measures 2,480 x 7,130. How many one-half acre parcels can he create after deducting 15% for parks, 10% for playgrounds and 7% for streets?

To determine how many one-half acre parcels can be created from the given property after necessary deductions for parks, playgrounds, and streets, it is important to first calculate the total area of the property and then adjust that area according to the specified percentages for deductions.

Start by calculating the total area of the property in square feet. The dimensions of the property are 2,480 feet by 7,130 feet. To find the total area, multiply these two numbers together:

Total Area = 2,480 ft x 7,130 ft = 17,694,400 square feet.

Next, convert the area into acres since one acre equals 43,560 square feet. To do this, divide the total area by the number of square feet in an acre:

Total Area in acres = 17,694,400 sq ft ÷ 43,560 sq ft/acre ≈ 406.71 acres.

Now, account for the deductions. The process involves adding the percentages for parks, playgrounds, and streets:

1. Parks: 15%
2. Playgrounds: 10%
3. Streets: 7%

The total deduction percentage is 15% + 10% + 7% = 32%.