A herbicide label calls for product to be applied at 3 ounces per 1000 square feet in one gallon of carrier. If you will be spot-spraying a roadside that is roughly 40 feet wide by 1000 feet long, about how much product would you need?

To determine how much herbicide would be required for spot-spraying a roadside that is 40 feet wide by 1000 feet long, it's essential to first calculate the total area that will be treated. The area can be found by multiplying the width by the length:

40 feet (width) x 1000 feet (length) = 40,000 square feet.

Next, the herbicide label specifies that 3 ounces of the product is needed per 1,000 square feet. To find out how many ounces are needed for the entire area, we divide the total area by the area covered per application:

40,000 square feet ÷ 1,000 square feet = 40.

This means that 40 times the labeled application rate must be used. Therefore, we multiply the amount of herbicide required for 1,000 square feet by the total number of applications needed:

3 ounces x 40 = 120 ounces.

Since there are 128 ounces in a gallon, to find out how many gallons that equates to, we convert ounces to gallons:

120 ounces ÷ 128 ounces per gallon ≈ 0.9375 gallons.

This rounds to almost 1 gallon. Therefore,