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A farmer operates a tractor on a farm to fertilize crops. The digital dashboard reads 6.5 miles per hour, 31 range, 1700 rpm.

A chart showing speed and area rate of coverage (acres per hour):

- 3 miles per hour: 5.96 acres per hour
- 3.5 mph: 6.95 acres per hour
- 4 mph: 7.95 acres per hour
- 4.5 mph: 8.94 acres per hour
- 5 mph: 9.94 acres per hour
- 5.5 mph: 10.93 acres per hour
- 6 mph: 11.92 acres per hour
- 6.5 mph: 12.92 acres per hour
- 7 mph: 13.91 acres per hour
- 7.5 mph: 14.90 acres per hour
- 8 mph: 15.90 acres per hour
- 8.5 mph: 16.89 acres per hour
- 9 mph: 17.88 acres per hour
- 9.5 mph: 18.88 acres per hour
- 10 mph: 19.87 acres per hour

A chart showing engine speed and flow rate:

- 500 rpm: 1 gallon per minute
- 750 rpm: 2.5 gallons per minute
- 1,000 rpm: 4 gallons per minute
- 1,250 rpm: 5.5 gallons per minute
- 1,500 rpm: 7 gallons per minute
- 1,750 rpm: 8.5 gallons per minute
- 2,000 rpm: 10 gallons per minute
- 2,250 rpm: 11.5 gallons per minute
- 2,500 rpm: 13 gallons per minute
- 2,750 rpm: 14.5 gallons per minute

If you continue operating the tractor at its current level, how many acres can you expect to fertilize in the next hour?

a. 5.96 acres
b. 11.92 acres
c. 12.92 acres
d. 19.87 acres

Answer :

Final answer:

If the farmer continues operating the tractor at 6.5 miles per hour, they can expect to fertilize 12.92 acres in the next hour.

Explanation:

The question relates to calculating the expected area coverage when a farmer operates a tractor for fertilizing crops at a certain speed. Given the digital dashboard readings and a chart showing speed vs. area rate of coverage, we note the tractor is moving at 6.5 miles per hour, which, according to the chart, corresponds to 12.92 acres per hour of coverage. This calculation is straightforward and relies on matching the tractor's current speed to the specified rate of coverage in the chart provided.