Andrea O. answered 04/14/15
Tutor
4.9
(196)
Tutors in Math from Elementary Math to Calc, Hablo Español
Ok, first let me explain the word problem. The iPad is $759 with a 20% coupon and $10 gift card. The tax of 7.125% is calculated on the (total price of the iPad minus the 20% coupon) and the $10 gift card is deducted or taken off the total after the tax.
So first we must find how much is 20% or .2 of 759
759 x .2 = 151.8, so what you pay is the total minus the 20%
759 - 151.8 =607.2, this is the total after the coupon and now we calculate the tax of this value
7.125% = .07125
.07125 x 607.2 = 43.263, this is what we add to the total after the coupon
607.2+43.263 =650.463, this is the total after the coupon and the tax
Now we can take off the $10 gift card
650.463 -10 = 640.463 ≈ about $ 640.46 the amount you pay for the iPad