crysderria
04.12.2020 •
Mathematics
three pounds of bannas cost 7 dollors complete the table showing the price of different amonuts of bannana at this rate
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Ответ:
Her average speed for the trip was 48 mph.
Step-by-step explanation:
Rina drove 1 hour at the speed = 45 mph
Distance covered in 1 hour = 45 miles
she drove 1.5 hours at the speed = 50 mph
Distance covered in 1.5 hour = 50 × 1.5 = 75 miles
Total distance covered by Rina = 45 + 75 = 120 miles
Total time taken by Rina = 1 + 1.5 = 2.5 hours
Average speed = Total distance / Total time
= 120 ÷ 2.5 = 48 mph
Her average speed for the trip was 48 mph.