500 million seconds
138,880 hours
5786.667 days
190.246 months
8332800 minutes
A Singaporean has assets of $5 billion.If he spends $10 every second,how long will it take for him to spend all his money
2 answers
you have an arithmetic sequence with
a = 5,000,000,000
d = -10
n = ?? , where n is in seconds
term(n) = a+(n-1)d
you want term(n) = 0
5,000,000,000 + (n-1)(-10) = 0
-10n + 10 = -5000000000
-10n = -5,000,000,010
n = 500,000,001 seconds
= 8,333,333.35 minutes
= 138,888.89 hours
= 5787.0 days
=15.85 years
a = 5,000,000,000
d = -10
n = ?? , where n is in seconds
term(n) = a+(n-1)d
you want term(n) = 0
5,000,000,000 + (n-1)(-10) = 0
-10n + 10 = -5000000000
-10n = -5,000,000,010
n = 500,000,001 seconds
= 8,333,333.35 minutes
= 138,888.89 hours
= 5787.0 days
=15.85 years
1 answer