3 years ago

Solve : x/3-2/5 = 2x/15-3/5

1 answer:

8 0

Solution:

x/3-2/5 = 2x/15-3/5

(x/3)/15 - (2/5)/15 = (2x/15)/15 - (3/5)/15
5x - 6 = 2x - 9
5x = 2x - 9 + 6
5x - 2x = -9 + 6
3x = -3
3x/3 = -3/3
x = -1

Therefore the value of x is -1

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How to expand (2x+1)(x+1)

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4 years ago

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How much must you deposit in an account that pays 6.25% interest, compounded annually, to have a balance of $700 after two years

Amanda [17]

The compound interest is applied to the remaining balance in the account

each subsequent year.

The amount that must be deposited is approximately $620.07

Reasons:

The given compound interest rate, r = 6.25% = 0.0625

The balance in the account after 2 years, A = $700

Required:

The required deposit, P, that gives the given account balance after 2 years.

Solution:

The following is the compound interest formula to use;

$A = \mathbf{P \times \left(1+r \right)^{ t}}$

Where;

t = 2 years

We get;

$\displaystyle P = \mathbf{ \frac{A}{(1 + r)^t}}$

Which gives;

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The amount that must be deposited to give $700 after 2 years is P ≈ $620.07

Learn more about compound interest here:

brainly.com/question/10028292

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