In a casino on a Saturday, 90% of the visitors lost $100 each, 9% of the visitors lost $1,000 each, and the rest won $10,000 eac
1 answer:
x = total amount of visitors
so we have 90% that lost $100, 9% that lost $1000, now 90+9 = 99%, what's left is just 1% then, so 1% won $10,000.
Profit is Revenue - Cost.
so the profit for the casino, is not who wins, because from the wins the casino needs to pay that to the winner, so they're losing that much, so for the casino, profits is when a player loses, so their profit will come from the 99% that lost money then.
keeping in mind that
since we know that 90% lost $100, that means 0.9x(100) is the total amount lost by all of them, since we also know that 9% lost $1000, then 0.09x(1000) is the total amount lost by them, and the wins are of course just 0.01x(100000).
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Alright, lets get started.
Given information : Irene writes the check of 200 $ . It means the amount is deducted form here account.
Irene deposited 125 $ in her account. Means this amount is added in her account.
Suppose her initial amount in account was x $.
When she writes the check of 200 $, the amount is deducted so new balance is (x - 200) .
When she deposit amount 125 $, it means , the new balance of her account will be:
Which shows her account is 75 $ less than her previous balance.
Hope it will help :)