All Answers 358090 Answers

P.S. I forgot to mention that the monthly payments are made at the beginning of the month, which is rather unusual for a mortgage!. But there you have it.

Well, it comes to:

2.87141073657... × 10^14

THAT'S A LARGE NUMBER!.

Just divide 27/15=1.80, then just subtract 1 and multiply by 100,

So, 1.80 - 1=.80 X 100=80%. And that the percentage increase. Good luck.

Let's see if we tackle this problem:

1- The formula for calculating a loan or a mortgage payment is:

2- A. i(1 + i)^n /(1 +i)^n -1, where A=Amount of loan or morgage, i=Interest rate per period(monthly in this case), n=Total number of periods or(25 x 12=300 months)

3- In trying to find( i) directly by using this formula doesn't work. It's the same as trying ti find the yield on a Bond.

4- A method of "iteration" is used, basically a method of trial & error and then using successive approximations to find the right number.

5-By using this method, I was able to find a monthly interest rate of .4124%.

6-Since this is a monthy rate, will have to find semi-annual rate.

7- So we take this number & divide it by hundred and then add 1=1.004124

8- Then we compound it for 6 months as follows:(1.004124)^6=1.025

9-Then 1.025-1=.025 X 2=.05 X 100=5%. This is the NOMINAL rate compounded semi- annually. The effective annual rate would then be:        (1.025)^2=5.0625%. And that's your interest rate on your mortgage. And it checks out to be accurate.PHEW!!!!!!!!!!!!!!!. That was a good one!.

Let us set the length to=L,

Since Abigail has done 3/4L=6,

Then we just divide both sides by 6, and we get:

L=6/ (3/4), which is the same as: 6 X 4/3(notice that I flipped 3/4 upside down),

Then we have:( 6 X 4)/3=24/3=8 Miles, which is total length of the track.

6 is 3/4  of 8 

2, 4, 6, 8

1, 2, 3, 4   so total length is 8 miles

What's 523 mines 244 regrouping,

I don't undwestand what you mean by "regrouping". However,

523 - 244=279

y5-5=6542

y^5=6542+5=6547

y^5=6547, we take the log of 6547

y^5=3.816

5 x y=3.816

y=3.816/5=.7632. This is the anti-log of y, so

y=10^.7632=5.797, which your answer.

What is the decimal form of three trillion,nine hundred thousand,four hundred twenty?,

If you means how is it written in decimal form, then it's like this:

3,000,000,900,420. That's how. Now, you can write it in scientific notation like this:

3.000000900420 X 10^12. And that's the end!.

16x3+4=(2x),

If you mean 16 times 3 + 4=2x, then,

48 + 4=2x

52=2x, we divide both sides by 2, and we have:

x=26

0.5722 = Cos C,

Well, once you have the cosine of an angle, then you can find the angle by using "Inverse cosine", and that will give you the angle that you want. So, in this case we have the cosine of C=.5722=55.10 Degrees. You have to use calculator to do that. Inverse cosine is sometimes called "arc-cosine."" Sometimes it's written Cos^-1.

d over 15 = what I'm having lots of trouble with it plz help!

You mean how you write it? If so, then it's written like this: d/15. That / means DIVIDE.

what is -2=2+v/4 Show Work,

-2-2=v/4=-4=v/4

v=4 x -4=-16

what's 9+10=19

what is 169/121=1 48/121

5 3/10 - 7.8=5.3 - 7.8=-2.5=-2 1/2

Here's a good resource that explains this in some detail :

http://www.purplemath.com/modules/strtlneq.htm

120euros + 16% IVA?=120 X 1.16=139.20, Or

120 X .16=19.20IVA

120 + 19.20=139.20

10x-18=180

25% of 2490= .25 X 2490=622 1/2

alog 2x + 3 (alog x – alog y)

This expression can be re-written as:

10^(2x)+3 (10^x-10^y)

This is

15 - 6x = -12 + 6x -10x

15 - 6x = -12 -4x   

Add 6x to both sides

15 = -12 + 2x

Add 12 to both sides

27 = 2x

Divide both sides by 2

13.5 = x

(or just x = 13.5)

.

 f(x)= (15-6x)^1/2

Note that we cannot take the square root of a negative number.....thus

15 - 6x must be greater than or equal to 0....therefore

15 - 6x >= 0  add 6x to both sides

15 >= 6x     divideboth sides by 6

15/6 >= x 

In other words,  x <= 15/6   and reducing x <= 5/2  ....  or  x <= 2.5

Here's the graph:   https://www.desmos.com/calculator/adyhteclth