Luis bought a computer and a home theater system. The original price of the computer was $3400 and the original price of the home theater system was half the original price of the computer. Luis was given a 23% discount on the home theater system. How much did Luis pay altogether?
Original price of the home theater system
= 3400 ÷ 2
= $1700

Discounted price of the home theater system in percent
= 100% - 23%
= 77%

100% of the price of the home theater system = 1700
1% of the price of the home theater system = 1700 ÷ 100 = 17
77% of the price of the home theater system = 77 x 17 = 1309

Discounted price of the home theater system = $1309

Total amount that Luis paid
= 3400 + 1309
= $4709

Answer(s): $4709