Aradio is on sale for $50. if this price represents a 10% discount from the original price, what is the original price to the nearest nickel?

Ok, so the discount is given in a percentage, in this case 10%.  The sale price is going to reflect 10% of the original price minus the discount, so...

Sale $ = original$ - original $ x .10

If we use some algebra, we can reorganize the equation to solve for the original price...

Sale $ = original$ - original $ x .10
Sale $ = original$ (1 - .10)
Sale $ = original$ x .90
original$ = sale$/.90

So now we can plug in our values

original price = 50/.90
original price = 55.55555 = $55.55 to the nearest nickel

Physical stimulation can not be used as you carnt ask 1/2 a person a it would be painful

It is 5.8 you add all of the up to equat 180 then solve the equation