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ur mom

there are 7x6=42 it would equal 6r1

1/75 * 4

= 4/75

(5/3)^-2

A negative exponent means to move the term to the denominator and get rid of the negative sign.

= \(\frac{1}{(5/3)^{2}}\)

That is the same thing as:

= \(\frac{1}{5^{2}/3^{2}}\)

=\(\frac{1}{25/9}\)

=\(1 / \frac{25}{9}\)

Keep, change, flip

=\(1 * \frac{9}{25}\)

=\(\frac{9}{25}\)

You can reduce the numerator and denominator by 8.

40/8 = 5

72/8 = 9

so

40/72 = 5/9

The total number of hours minus the number of hours she didn't walk equals the number of hours she walked.

24 - 8 = 16

4) 16 hours

4x + 7 = 3(x-2)

Distribute.

4x + 7 = 3x - 6

Subtract 3x from both sides.

1x + 7 = -6

Subtract 7 from both sides.

x = -13

Thanks Omi67: The programm I have written ONLY looks at "positive integers", but can easily be modified to to find both positive and negative answers.

Ahhh.... I was imagining it was something like that .....Thanx for the reply !

What is the smallest number under 16,000 that when divided by 127 leaves a remainder of 14, and when divided by 131 leaves a ramainder of 66. Thanks for any help.

Sorry AWNSER the qustion

Hello EP: Thanks for the enquiry. I have actually written a program(in Java) that uses iterations to find the the two variables in question. It is only a few lines of code and quite efficient. It can cycle through numbers 1, 2,3......up to perhaps 1 billion in a matter of seconds. It is essentially "trial and error", but it works very well!. There are formal methods of finding the number in question, but modular math can get messy and rather complicated for High School students, and even for the 1st and 2nd year college students. So, I thought why not simplify it by writing a few lines of code, at which I'm rather competent.

It might be a bit of "cheating", but there you have it and it works!.

Sorry...there is not that I know.....but others may be more aware of web2.0 calc abilities.....the +- key will only switch the current input from pos to neg ....or neg to pos for inputs....

You will have to add the parts     example    5 2/3  ENTER:  5 + 2 DIVIDED BY 3   = 5.666666..

Perhaps a graphical solution like shown below???

Well....will post graph when uploader is working.....

Hey Guest.....   I think you were probavly the one who solved a similar problem a day or two ago.....can you explain HOW you solve ONE equation with two variable for the two variables?

THIS one:   [127R +14] =[131T + 66], solve for R, T

THANX !!!

[127R +14] =[131T + 66], solve for R, T
R = 118  and S = 114, Therefore:
127 x 118 + 14 =15,000 The smallest number.
LCM of: 127, 131 =127 x 131 (both are primes)
=16,637. Then, the general formula is:
16,637C + 15,000. And for C=0, 1, 2......etc. we have:
15,000 - The smallest number that satisfies the above conditions.
31,637
48,274.....etc.

Yes! Just look to the right of zero(0)!.

2

Thank you very much!! i come to different answers it is for Analytical met viscous friction. i see how you do it thank you

Silly question......silly answer:

4xy+-9xy-3xy=  xy ( 4 + (-9) - 3)  = xy (-8) = - 8 xy

n^2 - (n-1)^2  = n^2 - n^2 + 2n -1  = 2n-1

Melody is correct......

Here is another way to look at it

Probability of NOT rolling a 5 on the first roll is 5/6

Probability of NOT rolling a 5 on the second roll is also 5/6

Probability of NOT rolling a 5 in two rolls is then   5/6 x 5/6 = 25 /36

so the probability of  (YES) rolling a 5 is   36/36 - 25/36 = 11/36  with two rolls....

 One of these days I will understand probability.....'probably'? or Maybe ? LOL

(I think !)