Nine tenths of a sum of money is 45. find the whole amount

If you would like to know the whole amount of money, you can calculate this using the following steps:

nine tenths of a sum of money is 45
9/10 * x = 45     /*10
9 * x = 45 * 10   /9
x = 45 * 10 / 9
x = 50

Result: Nine tenths of 50 is 45.

This is what i found “answer: a rigid transformation preserves both the side lengths and the angle measures of a polygon. step-by-step explanation: rigid transformations are the transformations which does not affect the size and the shape of figure .” i hope this you for what your looking for. can you plz mark me brainliest?