MK100
01.09.2019 •
Mathematics
Maya purchased a prepaid phone card for $25. long distance calls cost 23 cents a minute using the card. maya used her card only once to make a long distance call. if the remaining credit on her card is $17.64, how many minutes did her call last?
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Ответ:
Number of minutes used for last call = 736 / 23 = 32 minutes.
Ответ:
A = $2,122.20
Step-by-step explanation:
A = P(1 + r/k)^kt
Where,
A = future amount
P = principal = $1,500
r = interest rate = 7%
k = number of periods compounded = 4
t = years = 5 years
A = P(1 + r/k)^kt
= 1,500 (1 + 0.07/4)^4*5
= 1,500 (1 + 0.0175)^20
= 1,500 (1.0175)^20
= 1,500 (1.4148)
= 2,122.20
A = $2,122.20