Dylan bought a notebook and a portable air-conditioner. The original price of the notebook was $3600 and the original price of the portable air-conditioner was half the original price of the notebook. Dylan was given a 22% discount on the portable air-conditioner. How much did Dylan pay altogether?
Original price of the portable air-conditioner
= 3600 ÷ 2
= $1800

Discounted price of the portable air-conditioner in percent
= 100% - 22%
= 78%

100% of the price of the portable air-conditioner = 1800
1% of the price of the portable air-conditioner = 1800 ÷ 100 = 18
78% of the price of the portable air-conditioner = 78 x 18 = 1404

Discounted price of the portable air-conditioner = $1404

Total amount that Dylan paid
= 3600 + 1404
= $5004

Answer(s): $5004