Respuesta :
Answer:
Minimum number of hours = [tex]\frac{105}{60} \\=1.75[/tex]
Maximum number of hours = [tex]\frac{145}{60} \\=2.4167[/tex]
Step-by-step explanation:
Given that on a road trip, Andrew plans to use his cruise control for 125 mi, plus or minus 20 mi.
i.e. average time is 125 minutes
It can exceed by 20 minutes or take less time by 20 minute
Hence range of time can be found out by
Minimum number of minutes [tex]= 125-20 =105[/tex]
Maximum number of minutes [tex]= 125=20 =145[/tex]
Since answer is required in minutes we divide by 60 to get in terms of minutes
Minimum number of hours = [tex]\frac{105}{60} \\=1.75[/tex]
Maximum number of hours = [tex]\frac{145}{60} \\=2.4167[/tex]
