greykangaroo744

The multiple of a number to get another number.

Hey guys this is a " kind of" a basic math question, but I have no idea how to go about it.

If I have a number let's say 40 and I want to multiply it by a number to get 50, what is the best way to go about that?

I know in this case the answer is 1.25. However, I need a good method for complicated numbers.

Thanks very much in advance for any help.

in a subtraction problem with two numbers that have variables,does the subtraction sign go to the second number making it anegative number?
I have the math equation -9x - 13 - 9x = -31. please help.

Math equation 1

Is any hydrogen containing substance that is capable of donating a proton to another?