Question: Noemi lost $400 on roulette and $500 on blackjack. How much money did Noemi begin with if she still had $800 in her purse? Think carefully first, then make a decision:
The total amount of money that she lost is $400 + $500 = $900. If she remained with $900, she initially had $900 + $800 = $1700. So the answer is 1700.