A group of 6 students organized a fundraiser to go to Nicaragua for the summer. For them to go on the trip, each of them needs at least $450. On top of that, they need $3000 for their miscellaneous collective expenses. On the first day of their fundraiser, they receive $600. On the second day, they receive $900, and on the third day, they receive $400. For the next 4 days, they receive only half of what they raised on the first 3 days. How much more money does each person need to raise for them to reach their goal?
Let's be accurate as possible and think first.
475
All together, they need to raise ($450 x 6) + $3000 = $5700.

The raised $600 + $900 + $400 = $1900 the first 3 days.

For the next 4 days, they only raised $1900 / 2 = $950.

In the week, they raised $1900 + $950 = $2850.

They still need $5700 - $2850 = $2850.

Each person still needs $2850 / 6 = $475.

.

Therefore, the answer is 475