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Vedmedyk [2.9K]
3 years ago
10

If $7,000 is placed in an account with an annual interest rate of 5.5%, how long will it take the amount to triple if the intere

st is compounded annually? Round your answer to two decimal places.
...?
Mathematics
1 answer:
butalik [34]3 years ago
4 0
A= P(1 + r/n) ^nt
21000=7000(1+0.055/2)^1t

t = 20.52 years

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Answer: Children tickets cost 7.50

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Step-by-step explanation:

Let a represent adult tickets

Let c represent child tickets

On the first day she sells 6 adult tickets and 5 children tickets for total of 112.50. This can be written as:

6a + 5c = 112.50 ...... equation i

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6a + 5c = 112.50 ...... equation i

8a + 4c = 130 ....... equation ii

Multiply equation i by 4

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From equation ii,

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4c = 130 - 100

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The following function defines a recessive sequence:
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