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A middle-aged man has resolved to undertake a physical fitness regimen He decided to run 10 minutes per day
for the first week, and then add 10 minutes per day each week until he is running an hour a day. When will he
achieved this one hour a day target?


Sagot :

Answer:

he will achieved one hour a day in 6th week

Step-by-step explanation:

1st week=10 min

2nd week= 10+10=20

by arithmetic progression:

d=20-10=10

[tex] an = a1 + (n - 1) \times d\\ \\ 60= 10 + (n - 1) \times d \\ 60 = 10 + (n - 1) \times 10 \\ \\ n = 6[/tex]