A cinema has 100 seats Show how it is possible to sell exactly 100 tickets and take in exactly $100 if the ticket prices are:
Adults: $10 Seniors: 50 cents Children: 10 cents
Stacey Warren - Expert brainly.com
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help me on it please
but only 100 seats and 100 dollars worth of money
I have a solution but it's a little bit ugly, do you want me to show you what I did?
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8 adults, 27 seniors, 65 children works.
yes please show me how it works
multiply the top by 10
now subtract the second equation from the first:
so we start by choosing a so that when you take 900-99a the result is divisible by 4. Since 900 is divisible by 4 we want to subtract a multiple of 4 from it so we try a=4,8,etc. a=4 gives more than 100 for s so that doesnt work. try a=8:
we can check to see if the revenue is 100 too:
so it checks out