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1. An airline knows that only about 75% of those who make a reservation actually buy a ticket. At this rate, how many reservations should the airline accept to fill a plane with 180 seats?
2. Safe Side Banks pays an interest rate of 8% per year on certificate accounts. How much money must be put into an account to earn $60 in one year?
We have to use proportion to solve this problem. 75% -------------------180 100% ---------------------x crossmultiply 75*x=100*180 75x=18000 /:75 x=240 - its the answer
We have similar problem here 8%---------------------60$ 100% ------------------x crossmultiply now 8*x=60*100 8x=600 /:8 x=75 - its the answer
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