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3 000 000 (1 + .05)³  =  3000000(1.05)³  =  $3,472,875.00

Good luck, rosala.....!!!

From the original 20 boxes, since 3 have neither pens nor pencils, let's put those boxes aside. Now we have only 17 boxes.

Of these 17 boxes, some many have only pens, some may have only pencils, and some may have both pens and pencils.

We know that 13 of them have pencils and since every box that we now have has either pens or pencils or both, the 4 boxes that don't have pencils must have pens.

But, since 9 boxes have pens (subtracting 4 boxes from 9 boxes, giving us 5 boxes), 5 of these boxes must be boxes that also have pencils.

If we look inside all the boxes, we will find that 8 boxes have only pencils, 5 boxes have both pens and pencils, and 4 boxes have only pens. (And 3 that have neither pens nor pencils.)

2 numbers protection!

bye I'm going to fight a war with English exam!

Every kind if time occurs anon! Sometimes  a question is answered after its 2 mins if being asked! Just check the forum again if no one answered or repost the questions link! I'm sure one will answer ! Infact I answer many questions myself ( even tho they are of trolls lol) !

December 19th is my birthday......but somehow......"8" has always been "lucky" for me.....LOL!!!

Why? .... :/

Everyone is sometimes!

i remember that day when I was angry and when I answered I told the person " if you have a doubt don't ask me " 

mistakes happen, after all we are humans!

19 for me........!!!  (and sometimes, 8)

The smallest 3-digit integer is 100, the largest is 999.

Divide 100 by 13; the quotient is 7 and the remainder is 9; this means that the first multiple of 13 that will be at least 100 is 8.

Divide 1000 by 13; the quotient is 76 and the remainder is 12; this means that the last multiple fo 13 that will be smaller than 1000 is 76.

We now need to count the number of numbers starting with 8 and ending with 76.

A short way to do this is to subtract 8 from 76 and add 1 -- 76 - 8 + 1 = 69. (Don't forget to add 1!)

There are 69 positive integer multiples of 13 whose answers have 3 digits.

Use what on mixed numbers? 

If your talking about the calc on the home page then yes you can but first you gotta turn it into improper fractions!

Correct, rosala....just "giving" answers with no explanation isn't good.....I'm often guilty of this myself....!!!

Whichever you like! For me it's 17 my birthday date! What's yours?

But mr anonymous we need to show them how to do it rather than giving the direct key! 

Ive answered a question like this above!check if than helps!

The greatest common factor is 22.

22 x 17 = 374  and  22 x 29 = 638.

One way to find this to to use the Euclidean algorithm (named in honor of Euclid).

Divide the smaller number into the larger number, and look at the remainder:

638 ÷ 374  =  1, with a remainder of 264  (Actually, you don't care about the quotient, just the remainder).

Since the remainder isn't 0, divide the remainder into the divisor:

374 ÷ 264  =  1, with a remainder of 110.

Since the remainder still isn't 0, divide the remainder into the divisor:

264 ÷ 110  =  2, with a remainder of 44.

Since the remainder still isn't 0, divide the remainder into the divisor:

110 ÷ 44  =  2, with a remainder of 22.

Since the remainder still isn't 0, divide the remainder into the divisor:

44 ÷ 22  =  2, with a remainder of 0.

Now, when the remainder is 0, you are done and your answer (the greatest common factor) is the last divisor; so the greatest common factor is 22.

Just do it like this 

25/100 x 943

now solve this and you'll get your answer!:)

Let's say that you are arranging them from left to right.

You have 4 choices for the first book, then 3 choices for the next book, then 2 choices, then only 1 choice.

To find the total number of choices, multiply these numbers:  4x3x2x1 = 24 different ways.

(A short way to write  4x3x2x1  is 4!, where "!" means "factorial".)

If you meant the two fractions to be  (x-4)/(x-5)  and  (2x-3)/(x-6),

then the common denominator is (x-5)(x-6).

the answer is 21

I think you're trying to find the number of sides......

We can find the interior angle of a regular polygon with the "formula"  .....  (n - 2) 180 / n  .... so we have

(n-2)180 / n = 165   multiply both sides by n

(n-2)180 = 165n       simplify

180n - 360 = 165n    subtract 180n from both sides

-360 = -15n              divide by -15 on both sides

24  = n

Note......we can't find the side lenth, because any regular polygon with n sides might have any side length....!!!

Note that 25^2 - 24^2   = 49    ....so......the square root of 49 = 7

So the "triple"  is  7 - 24 - 25  ......note that this is known as a "primitive" triple........(i.e., it's not a multiple of some other triple....!!!)

(7 / -10) /  ( -11 / 1)     invert the second fraction and multiply

(7 / -10) x ( 1 / -11)  =

7 / 110

50 000 000 000  =

5.0 x 10^10

Melody and I try to get around to all the questions....however.......there are those days....