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National Debt In July 2012, the national debt was
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College Algebra (6th Edition)
- Self Check If the empty truck and driver in Example 4 weigh 3800 pounds, how many bushels can the truck legally carry?arrow_forwardSelf-Check A student scores 82, 96, 91, and 92 on four college algebra exams. What score is needed on a fifth exam for the student to earn an average grade of 90?arrow_forwardFlying rates A jet plane, flying 120 mph faster than a propeller-driven plane, travels 3520 miles in 3 hours less time than the propeller plane requires to fly the same distance. How fast does each plane fly?arrow_forward
- Solve each problem. Filling swimming pool A garden hose can fill a swimming pool in 3 days, and a larger hose can fill the pool in 2 days. How long will it take to fill the pool if both hoses are used?arrow_forwardSolve each problem. Mixing solutions How many gallons of a 5 alcohol solution must be mixed with 90 gallons of 1 solution to obtain a 2 solution?arrow_forwardFinance A salesperson’s weekly paycheck is 15 less than a second salesperson’s paycheck. The two paychecks total $1125. Find the amount of each paycheck.arrow_forward
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