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3 years ago

What is the difference between the compound interest and simple interest on rs 8000 at 15% per annum for 2 years?

1 answer:

3 0

Simple Interest:

I = P x r x t
I = 8000 x 0.15 x 2
I = 2400

Compound Interest:

A = P(e^rt)
where e is the Euclid’s constant
and A is the total amount with interest

A = 8000(e^0.15(2))
A = 10799 (rounded up)
Therefore compound interest is 2799.

The difference:
compound - simple = 2799 - 2400

Answer is rs 399.

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3 years ago

The product of 4 and a number f decreased by 2 is 15

Debora [2.8K]

Answer: The number is: "2 " .

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Step-by-step explanation:

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Write the expression; which is an equation, as follows:

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" 4x − 12 = 2(-x) " ; in which "x" represents "the number for which we shall solve" .

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Note:

If the "number" = "x" ; the "opposite of the number" = " -x " ;

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Rewrite as: " 4x − 12 = -2x " ;

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→ Add "12" ; & add "2x" ; to EACH SIDE of the equation:

4x − 12 + 12 + 2x = -2x + 12 + 2x ;

to get: 6x = 12 ;

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Now, divide each side of the equation by "6" ;

to isolate "x" on one side of the equation; & to solve for "x" ;

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6x / 6 = 12 / 6 ;

to get: x = 2 .

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Answer: The number is: "2 " .

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Let us check our answer, by plugging in "2" for "x" in our original equation:

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→ " 4x − 12 = 2(-x) " ;

Let us plug in "2" for "x" ; to see if the equation holds true; that is; if both side of the equation are equal; when "x = 2" ;

→ " 4(2) − 12 = ? 2(-2) ??

→ 8 − 12 = ? -4 ? ;

→ -4 = ? -4 ?? Yes!

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3 years ago

Read 2 more answers

The ordered pairs shown below are on the same line. (6,4) (12.6) Which equation describes the relationship between the x-coordin

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3 years ago

Parts of an algebraic expression separated by plus or minus signs are

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Answer: called tthe term of an algebraic expression.

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Examples of algebraic expressions and their terms:

(i) x + 10

We observe that the number of terms used in the expression x + 10 is 2. The terms are x and 10.

(ii) 5m + 2n - 7

We observe that the number of terms used in the expression 5m + 2n – 7 is 3. The terms are 5m, 2n and 7.

(iii) 3a/b

We observe that the number of term used in the expression 3a/b is 1. The term is 3a/b.

(iv) 3xy + 7xz + 2yz - 6

We observe that the number of terms used in the expression 3xy + 7xz + 2yz - 6 is 4. The terms are 3xy, 7xz, 2yz and 6.

) 2abc + 1

We observe that the number of terms used in the expression 2abc + 1 is 2. The terms are 2abc and 1.

Therefore, the algebraic expressions are either simple or compound.

(i) Simple algebraic expressions consist of one term.

(ii) Compound algebraic expressions consist of two or more terms.

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2 years ago

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