Henry bought a dishwasher and a portable air-conditioner. The original price of the dishwasher was $3600 and the original price of the portable air-conditioner was half the original price of the dishwasher. Henry was given a 30% discount on the portable air-conditioner. How much did Henry pay altogether?
Original price of the portable air-conditioner
= 3600 ÷ 2
= $1800

Discounted price of the portable air-conditioner in percent
= 100% - 30%
= 70%

100% of the price of the portable air-conditioner = 1800
1% of the price of the portable air-conditioner = 1800 ÷ 100 = 18
70% of the price of the portable air-conditioner = 70 x 18 = 1260

Discounted price of the portable air-conditioner = $1260

Total amount that Henry paid
= 3600 + 1260
= $4860

Answer(s): $4860