The sum of two numbers witha difference of two equals forty can be set up and solved this way: x + (x - 2) = 40 2x - 2 = 40 2x = 42 x = 21 x - 2 = 19 The two numbers are 21 and 19.

There is no sum of e=mc2, it is an equation concerning matter and energy. e=mc2 stands for: Energy equals mass times the velocity of light squared. E = M C 2

The question has been asked "What is the angle sum of a thirteen sided polygon?" The answer to this question is 1980 degrees. The sum of the interior angles of a polygon of n sides = 180(n - 2)

A 24 hour clock displays digits whose sum total equals the number of led's used to display them 94 times a day. A 12 hour clock displays them 108 times a day.

Yes! Interestingly enough, the sum of the angles of any four-sided shape equals 360, the same number of degrees in a circle. The sum of the angles of any triangle equals 180, and 180 times two equals 360.

Addend plus addend equals sum Minuend minus subtrahend equals difference Multiplicand times multiplier equals product Dividend divided by divisor equals quotient

We can re-arrange this sum to discover that if 8.5x = 404.09, this means that 404.09 / 8.5 = x. In this case, x = 47.54. Therefore, the unknown number in your sum is 47.54.