Alvin wants to become a hairdresser. He can save $250 a month for two years, and his family has promised to help him with the rest. His training will cost $9,500. How much will his family have to pay?
$___
Alvin can save a total of $250 x 12 months x 2 years = $<<250*12*2=6000>>6000.
Therefore, his family needs to pay $9500 - $6000 = $<<9500-6000=3500>>3500. Answer: \boxed{3500}.