
Jose H. answered 01/23/17
Tutor
4.3
(3)
A prospective teacher aiming to impact student learning
Let X be the original price and let A be the amount that the customer paid.
We know that:
(original price) -( $25 dollars discount) = (price that the customer paid) OR
X-25=A
We also know that
(the customer paid $4.50 less that half of the original price.)
Since we know that A is what the customer paid the equation gives us
A= (1/2)X - $4.50
all that is left is to substitute A into our first equation and solve for X which will give us X
X-25 = (1/2)X-4.50
(1/2)X=25-4.50 ( subtracted (1/2)x to both side and added 25 dollars to both sides)
(1/2)X=20.50
X=41 (multiplied by two to both sides in order to solve for X)
Therefore, the total price of the original item is $41 dollars! Hope this helps!