If a section of pipe is 1.3 miles long, how many 20-foot joints of PVC pipe are needed to complete it?

To determine how many 20-foot joints of PVC pipe are needed for a section of pipe that is 1.3 miles long, it is essential to convert the length from miles to feet first.

1. Start with the length in miles: 1.3 miles.

2. Since there are 5,280 feet in a mile, multiply 1.3 by 5,280 to convert it to feet:

[

1.3 \text{ miles} \times 5,280 \text{ feet/mile} = 6,864 \text{ feet}

]

3. Next, divide the total length in feet by the length of each joint of PVC pipe, which is 20 feet:

[

6,864 \text{ feet} \div 20 \text{ feet/joint} = 343.2 \text{ joints}

]

4. Since you cannot have a fraction of a joint, round up to the nearest whole number. This will give you a total of 344 joints necessary to cover the distance completely.

However, it seems this calculation is slightly different than the answer provided. Rounding up would not account for needing an additional joint