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3 years ago

I understand the simple interest part, however I don’t understand the compounded interest part, need help quick.

Mathematics

1 answer:

Burka [1]3 years ago

7 0

Compound interest is the starting amount x (1+ the interest rate as a decimal)^ the time in years=the final amount.

In your case, the equation will be $1000*(1+0.10)^how many years= the final amount.

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What is 7 devided by 245 and show work

agasfer [191]

1. Set up the long division.

245/7

2. Calculate 700 ÷ 245, which is 2 with a remainder of 210.

0.02245/7.4.902.10

3. Bring down 0, so that 2100 is large enough to be divided by 245.

0.02245|/.4.902.100

4. Calculate 2100 ÷ 245, which is 8 with a remainder of 140.

0.028245|/.4.902.1001.960140

5. Bring down 0, so that 1400 is large enough to be divided by 245.

0.028245/7.4.902.1001.9601400
6. Calculate 1400 ÷ 245, which is 5 with a remainder of 175.

0.0285245|7.4.902.1001.96014001225175

7. Therefore, 7 divided by 245 approximately equals 0.0285
7÷245≈0.0285

8. Simplify
0.0285 <------------- Answer :)

8 0

3 years ago

What is 1 5/8 divided by 5 1/7

weeeeeb [17]

Answer: 91/288

Step-by-step explanation: To divide mixed numbers, first write the mixed numbers as improper fractions.

We can do this by multiplying the denominator by the whole number and then adding the numerator. Then, we put our new numerator over our old denominator.

So here, we can write 1 and 5/8 as the improper fraction 13/8 and we can write 5 and 1/7 as the improper fraction 36/7.

So here, we have 13/8 ÷ 36/7.

Dividing by a fraction is the same as multiplying by the reciprocal of that fraction.

So here, 13/8 ÷ 36/7 is the same as 13/8 × 7/36.

So now we are simply multiplying fractions and we do this by multiplying across the numerators and multiply across the denominators.

$\frac{13}{8} x \frac{7}{36} = \frac{91}{288}$

So now we have 91/288 which is in lowest terms.

This means that 1 and 5/8 divided by 5 and 1/7 is 91/288.

7 0

3 years ago

Given the equation 4x2 − 8x 20 = 0, what are the values of h and k when the equation is written in vertex form a(x − h)2 k = 0?

Westkost [7]

The vertex form of the given quadratic equation is

$4(x-1)^{2} + 16 =0$ .

According to the given question.

We have a quadratic equation

$4x^{2} -8x + 20 = 0$

Since, for the standard quadratic form is $ax^{2} +bx + c = y$ , the vertex form of a quadratic equation is $y = a(x -h)^{2} + k$ where (h, k) is the vertex.

And h and k can be calculated as

h = -b/2a and y = k

So, for the given equation $4x^{2} -8x + 20 =0$ the vertex (h, k) is given by

h = -(-8)/2(4) = 8/8 = 1 (X coordinate of vertex)

and,

$y =4x^{2} -8x+ 20$

substitute x = 1 in the above equation for the value of k

Y = 4(1)(1) - 8(1) + 20

⇒ Y = 4 - 8 + 20

⇒ Y = -4 + 20

⇒ Y = 16

so, k = 16 (Y coordinate of vertex)

Now, substitute the value of a, k and h in $y = a(x-h)^{2} + k$ .

⇒ $0 =4(x-1)^{2} + 16$

Therefore, the vertex form of the given quadratic equation is

$4(x-1)^{2} + 16 =0$ .

Find out more information about vertex form of a quadratic equation here:

brainly.com/question/12223454

#SPJ4

6 0

1 year ago

What is 3x - y = -4 2x - y = -10 Using substitution

kipiarov [429]

3x - y = -4
3x - (-10) = -4 Substitute
3x + 10 = -4 Simplify
3x = -14 Separate numbers and variables
x = -14/3 Divide

2x - y = - 10
2x - (-10) = -10 Substitute
2x + 10 = -10 Simplify
2x = -20 Separate numbers and variables
x = -10 Divide

5 0

3 years ago

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Please explain how you got your answer.

ipn [44]

Answer:

Step-by-step explanation:

6 0

2 years ago

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