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Equal amounts are invested in each of three accounts paying 3% , 6% , and 11.5% annually. If one year's combined interest income is $881.50 , how


  • Equal amounts are invested in each of three accounts paying 3%6%, and 11.5% annually. If one year's combined interest income is $881.50, how much is invested in each account? 


  • Two trains are 440 miles apart, and their speeds differ by 16 mph. Find the speed of each train if they are traveling toward each other and will meet in 4 hours. 


  • A nurse wants to add water to 30 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add? (Hint: Water is 0% benzalkonium chloride.) 


  • A famous basketball player scored 85 points in a high school game, breaking a national record. She made 32 more 2-point baskets than 3-point baskets, and only 1 free throw. How many 2-point and 3-point baskets did she make?To hold the temperature of a room between 


  • 19° and 22° Celsius,what Fahrenheit temperatures must be maintained? Hint: Use the formula C = 5/9 (F − 32).

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