+130091 1st way....note that a 15% discount is the same thing as multiplying by .85
Take 5 dollars off the original price = p -5
Take a 15% discount on this = (p - 5) .85
(p - 5).85 = .85p - 5(.85) = .85p - 4.25 = final price (1)
Second way
Apply the discount .....then the coupon
.85p - 5 = final price (2)
If you can see this .....subtract (2) from (1)....so we have
.85p - 4.25 - ( .85p - 5)
-4.25 + 5 =
$ [ 5 - 4.25] =
$.75 more
