a new cruise ship has just launched 3 new ships: the pacafic paradise, the cribbean paradise, and the mediterranean paradise. the cribbean paradise had 33 more deluxe state rooms than the pacific paradise. the mediterranean paradise had 35 fewer deluxe state rooms than three times the number of deluxe state rooms on the pacific paradise. find the number of deluxe state rooms for each ship, if the total number of deluxe state rooms for the three ships is 633
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Expert's answer
2012-03-28T16:24:22-0400
Let's make denotations: cribbean paradise has x deluxe rooms pacific paradise has y deluxe rooms mediterranean paradise has z deluxe rooms We know that x+y+z=633 We also know that "cribbean paradise had 33 more deluxe state rooms than the pacific paradise" => x=y+33 "the mediterranean paradise had 35 fewer deluxe state rooms than three times the number of deluxe state rooms on the pacific paradise"=> z+35=3y Thus, we need to solve the system of equations: x+y+z=633 x=y+33 z+35=3y => z=3y-35 whence (y+33)+y+(3y-35)=633 5y-2=633 5y=635 y=127 hence x=127+33=160 z=3y-35=381-35=346
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