Diana drove 169.5 miles in total.
Step-by-step explanation:
Average speed first = 50 miles
Driving time = 1.5 hours
Distance = Speed*Time
[tex]Distance=50*1.5\\Distance=75\ miles[/tex]
Average speed afterwards = 42 miles
Driving time = 2.25 hours
Distance=Speed*Time
[tex]Distance=42*2.25\\Distance=94.5\ miles[/tex]
Total distance = 75+94.5
Total distance = 169.5 miles
Diana drove 169.5 miles in total.
Keywords: distance, speed
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