reinout-g

I made an illustration of your problem Bertie.

Since the radius of the first circle from center to the common point is 15 and the radius of the second circle to the common point is 20 the distance between the two centers had to be $${\sqrt{{{\mathtt{15}}}^{{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}{{\mathtt{20}}}^{{\mathtt{2}}}}} = {\mathtt{25}}$$

I'm not sure about how I can solve your question though

Since you said no calculus, I can hardly believe Melody's answer is correct .

Sorry Melody 

$$\begin{array}{lcl}
\mbox{express } \frac{2y}{3}+2y-\frac{6}{15} \mbox{ (in a simpler form?)}\\
\frac{2y}{3}+2y-\frac{6}{15}\\
\frac{2y}{3}+2y*1-\frac{6}{15}\\
\frac{2y}{3}+2y*\frac{3}{3}-\frac{6}{15}\\
\frac{2y}{3}+\frac{6y}{3}-\frac{6}{15}\\
\frac{2y+6y}{3}-\frac{6}{15}\\
\frac{8y}{3}-\frac{6}{15}\\
\frac{8y}{3}*1-\frac{6}{15}\\
\frac{8y}{3}*\frac{5}{5}-\frac{6}{15}\\
\frac{40y}{15}-\frac{6}{15}\\
\frac{40y-6}{15}
\end{array}$$

Reinout 

A picture with words written over it is called a meme.

There are several pictures with a standard meaning such as

first world problems

anti joke chicken

succes kid

there are many, many more but it is also common to use other pictures with the same thing.

There are several websites where people post millions of these every day. 

People vote them up or down and the most popular ones appear on a 'popular' page.

If you want to make one yourself you can use;

Aah, I guess if someone's interested (s)he could try and see where the fault lies in these.

Well thought of Melody 

remember that

3c = c + c + c

7c = c + c + c + c + c + c + c

5c = c + c + c + c + c

So we can say

3c+7c+5c = c + c + c + c + c + c + c + c + c + c + c + c + c + c + c = (3+7+5)c = 15c

I haven't seen you menion that forum in a while Melody .

I see that you really want to get to the bottom of this .

Melody, I do not wish to offendeth thee, but for some reason I cannot bring my mind to what thou arth doing.

For some reason, what Morgan unravels concurs with my mind and this is validated by one irrefutable truth;

The holy book of solutions has spoken of the mighty €39.84!

I wish I could forclose thee thou fault in thine carefully conceived answer, but I cannot.

May the protector of the irrealms, rooted of the negative one help us define your irregularities.

I think the answer is trivial

He's here