Nathaniel is using the quadratic formula to solve 0 = x2 + 5x - 6. His steps are shown below/attached
2 answers:
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Answer:
1,350 meters per min
Step-by-step explanation:
Given that Mr. Castelli covers 125 miles in 2.5 hours, the average speed = .
In miles per hr, average speed = .
Converting 50 miles/hr to km per hr:
If 1 miles = 1.62 km (unit conversion)
50 miles = 50*1.62 = 81 km/hr
Converting 81 km/hr to meters per hr:
1 km = 1,000 m (unit conversion)
81 km = 81*1,000 = 81,000 m/hr
Converting 81,000 m/hr to meters per minutes:
60 mins = 1 hr
Therefore, average speed =
Average driving speed of Mr Castelli in meters per minute = 1,350 meters per minute.