Morgan has $50,000 to invest and wants to receive $5000 interest the first year. He puts part in CD's earning 5.75%APY, part in bonds earning 8.75%APY and the rest in a growth fund earning 14.6% APY. How much should he invest at each rate if he puts the least amount possible in the growth fund?
Mixing Acid Solutions
Simpson's Drugstore needs to prepare a 40L mixture that is 32% acid from three solutions: a 10% acid solution, a 25% acid solution, and a 50% acid solution. How much of each solution should be used if Simpson's wants to use as little of of the 50% solution as possible?
Matthew has 74 coins consisting of nickles, dimes and quarters ni his coin bos. THe total value of the coins is $8.85. If the number of nickles and quarters is four more than the number of dimes, find how many of each coin Matthew has in his coin box.
Heather has saved $177 to take with her on the family vacation. She has 51 bills consisting of $1, $5, and $10 bills. If the number of $5 bills is three times the number of $10 bils, find how many of each bill she has.
Word problems are solved.