3 years ago

Help me please thanks

1 answer:

5 0

Your answer would be 5/2. 5/2 times 2/5 would leave you with 1. 1 × x is just x, so x would equal 10 times 5/2, which is 25.

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skelet666 [1.2K]

Answer:

The correct answer is a. $2275.28; b. 17.04 years

Step-by-step explanation:

Principal to be invested is $2000

Interest rate (r) per year is 6.5 quarterly.

Interest is calculated compoundly.

a. Time (t) for the investment is given to be 2 years.

Amount after two years is = Principal × $( 1+ \frac{r}{100n}) ^ {nt}$ where the value of n is 4.

⇒ A = 2000 × $( 1+ \frac{6.5}{400}) ^ {8}$

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b. Now the value of A is given to be triple the principal = $ (3 × 2000).

Therefore we need to find the value of t.

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⇒ ㏑ 3 = 4t × ㏑ ( 1.01625)

⇒ t = 17.04

Therefore it would take 17.04 years for the principal to triple.

5 0

3 years ago