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Algebra I Unit 7-4 Quiz. One antifreeze solution is 10% alcohol. Another antifreeze solution is 18% alcohol. How many liters of each antifreeze solution should be combined to create 20 liters of anti-freeze solution that is 15% alcohol?
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Algebra I Unit 7-4 Quiz • One antifreeze solution is 10% alcohol. Another antifreeze solution is 18% alcohol. How many liters of each antifreeze solution should be combined to create 20 liters of anti-freeze solution that is 15% alcohol? • A local band is planning to make a compact disk. It will cost $12,500 to record and produce a master copy and an additional $2.50 to make each sale copy. If they plan to sell the final product for $7.50, how many disks must they sell to break even? • Suppose it takes you and a friend 3.2 hours to canoe 12 miles downstream (with the current). During the return trip, it takes you and your friend 4.8 hours to paddle upstream (against the current) to the original starting point. Find the average paddling speed in still waiter of you and your friend and the average speed of the current of the river. Round answers to the nearest tenth.