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Close, but the work is a small but wrong. -3*-1=3. But the second part (3*-1=-3) and the answer(-3) are correct.

Hi Katie-Leigh,

I like seeing you one the forum. :)

I am not sure if you understand.  It is good to say thank you but if you do not really understand it is very important that you say so.  :D

One and 7/10 is 6 and 4/5 of what number?

Just give the unknown number a letter untill we work out what it is.  N is good :)

so the question becomes:

One and 7/10 is 6 and 4/5 of N?

of means times so we have

One and 7/10 is 6 and 4/5 x N?

\(\frac{7}{10}=6\frac{4}{5}\times N\\ \frac{7}{10}=N\times 6\frac{4}{5}\\ \)

Now the opposite of multiply is divide so to get N all by itself you will need to divide by that mixen numeral

\(\frac{7}{10}\div 6\frac{4}{5}=N\times 6\frac{4}{5}\div 6\frac{4}{5}\\ \frac{7}{10}\div 6\frac{4}{5}=N\\ N=\frac{7}{10}\div 6\frac{4}{5}\\\)

You can finish it on the calculator or by hand :)

Do you completely understand?

If you don't, try and explain what is bothering you about it ..........................    

ok 

Let's turn them into improper fractions.

We have 19/5 - 57/10

We need the denominators to be the same, so let's see what number we need to multiply 19/5 by to make the denominator the same as 57/10

Multiply 19 by 2 and 5 by 2, so you now have 38/10 - 57/10. 38-57=-19.  Divide -19 by 10 and you will get -1.9, or -1 9/10.

Even if the equation is 1,000,000 times -2, the answer is -2,000,000. HOWEVER, if it is -1,000,000 times -2, the answer is 2,000,000. 

x=5

You can go online and download, for free, the fastest software on the Internet that calculates Pi to as many digits as you want. It will also give you the time it takes your computer to calculate as many digits as you want. Here is the link: http://www.numberworld.org/y-cruncher/

How did you get that

pi^2 = 9.8696044010893586

You know that 2*3=6, correct?

Well if one of those number is negative, then the answer is negative. Let's change that 3 to a negative 3 but keep the 2 positive. 2*(-3)=-6

(3+(4/5))-(5+(7/10)) = -1 9/10

Mods? Halp pls? You guys do a better job of explaining than I do.

because when I multiplied -1 by -1, they turned into a 1, and anything times a 1 is itself.

Such as 3*1=3.

If there is a positive number multiplied by a negative or vice versa, the answer is negative.

But if there is a positive times a positive or a negative times a negative, the answer is positive.

Man I've got one, but it s SO LONG. I'll try to remember it, but it's a bit tough to remember...

I assume you mean pi, so here you go.

100 digits of pi:3.14159265358979323846264338327950288419716939937510 58209749445923078164062862089986280348253421170679 82148086513282306647093844609550582231725359408128 48111745028410270193852110555964462294895493038196 44288109756659334461284756482337867831652712019091 45648566923460348610454326648213393607260249141273 72458700660631558817488152092096282925409171536436 78925903600113305305488204665213841469519415116094 33057270365759591953092186117381932611793105118548 07446237996274956735188575272489122793818301194912 98336733624406566430860213949463952247371907021798 60943702770539217176293176752384674818467669405132 00056812714526356082778577134275778960917363717872 14684409012249534301465495853710507922796892589235 42019956112129021960864034418159813629774771309960 51870721134999999837297804995105973173281609631859 50244594553469083026425223082533446850352619311881 71010003137838752886587533208381420617177669147303 59825349042875546873115956286388235378759375195778 18577805321712268066130019278766111959092164201989

Ok, I gotcha. We can start with an example problem(I do lots of those btw): -2(-3)-1

Ok, Let's split it into it's parts. (-1*2)*(-1*3)*(-1)

We see two negative 1s, so let's multiply those and get rid of them. Now we have (2)*(3)*(-1)

2*3=6, so now we have (6)*(-1).

6*-1=-6.  

Do you see how it works?

Try this problem: -3(-4)-1

If the dog is on the beach here in Alaska it's a  'Pupsicle'

4x   means  4 times 'x'  

  x^4 is 'x' the fourth power or  x times x times x times x   

No, a negative multiplied by a negative equals a positive. 

4*(1/3)*3-3^2 = -5

The equation for this line is   x = 12    The slope is 'undefined'  

ok, let's try this example: -2(-6)

Let's split this into its parts. (-1*2)*(-1*6)

We see that there are two negative 1s in this equation, so let's multiply those by each other. -1*-1=1, so we have 1*2*6.

Let's combine like terms now. 1*2=2, then multiply 2*6 to get 12. The answer to -2(-6) is 12.

If you mean:  -3  x (-2) - 1  = 5     If you mean -3-2-1 = -6