the total charge for a yearly internet movie rental membership is $231.A registration fee of $15 is paid up front and the rest i
1 answer:
New members pay a fee of $18 per month.
Step-by-step explanation:
Given,
Yearly movie rental cost = $231
Registration fee = $15
1 year = 12 months
Let,
x be the fee per month.
12x+15=231
Dividing both sides by 12
New members pay a fee of $18 per month.
Keywords: subtraction, division
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Answer:
It takes 22.52 years for the balance to triple in value.
Step-by-step explanation:
Continuous compounding:
The amount of money earned using continuous compounding is given by the following equation:
In which A(0) is the initial amount of money and r is the interest rate, as a decimal.
Interest rate of 5%.
This means that , and thus:
Time for the balance to triple?
This is t for which . So
It takes 22.52 years for the balance to triple in value.