Use unit analysis to answer how many minutes are in 7 years, assuming that each year has 365 days.
A) 3,689,200 minutes
B) 3,679,200 minutes
C) 3,699,200 minutes
D) 3,709,200 minutes
E) 3,719,200 minutes

Question

Quizplus · Accepted Answer

1 year = 365 days
1 day = 24 hours
1 hour = 60 minutes

Therefore:
1 year = 365 days/year
= 365 days/year x 24 hours/day
= 8,760 hours/year x 60 minutes/hour
= 525,600 minutes/year

7 years = 7 x 525,600 minutes/year
= 3,679,200 minutes

So, the best choice is B.

Use Unit Analysis to Answer How Many Minutes Are in 7