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jacycooley
28.03.2020 •
Mathematics
Deidre has 60,000 in savings account that earns 15% interest per year the interest is not compounded how much will she have in four months
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Ответ:
Explanation
A percent is always over a whole so 15% = .15
60000 • .15 = 9000 yearly
9000/12 = 750 monthly
750 • 4 months = 3000
60000 + 3000 = 63000
If you want to be more precise Change 12 into 365 days and multiply the result of 9000/12 by the average amount of days in four months.
Ответ:
Data:
words=420 words
time=8 minutes
ratio₁= number of words/ time (minutes)
ratio₁=420 words/ 8 minutes=52.5 words/ minute.
Answer₁: the first ratio will be: r₁=52.5 words/ minute. (52.5 words per minute)
2) Second ratio (time per words)
Data:
Time=8 minutes=8 minutes(60 seconds/1 minute)=480 seconds
number of words=420 words
Ratio₂=time/ words
Ratio₂=480 seconds/420 words≈1.14 seconds/word
Answer₂= ratio₂=1.14 seconds/word (1.14 seconds per word)
3)third ratio (words per hour)
Data:
time=8 minutes=8 minutes(1 hour/60 minutes)=2/15 hours≈0.133333... hours
number of words=420 words
ratio₃=number of words/ number of hours.
ratio₃=420 words/(2/15) hours=3150 words/hour.
Answer₃: ratio₃=3150 words/hour (3150 words per hour)