Question

Alex has $113 and wants to buy a new video game console. To do so, he needs at least $300 plus 9% sales tax. If alex makes $28 a day, but always puts one-fourth of his earnings into his savings account for college, how many days will it take alex to have enough money to purchase the video game console?.

Answer 1

$113 + $28(3/4)d = $300(1.09)

$113 + $21d = $327

$21d = $214

d = 10.2 days, so d = 11 days.