In: Math
2. One week a computer store sold a total of 36 computers and external hard drives. The revenue from these sales was $25600. If computers sold for $1180 per unit and hard drives for $125 per unit, how many of each did the store sell?
How many computers were sold?
How many external hard drives were sold?
3. You invested $7000 between two accounts paying 3% and 9% annual interest, respectively. If the total interest earned for the year was $ 450, how much was invested at each rate?
$ ___?__ was invested at 3% and $ ___?___ was invested at 9%.
4. You invested money in two funds. Last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you received a total of $858. This year, the first fund paid a 10% dividend and the second only 1%, and you received a total of $832. How much money did you invest in each fund?
How much money was invested in the first fund? $___?__
How much money was invested in the second fund? $___?__
5. Things did not go quite as planned. You invested $20,340, part of it in a stock that paid 12% annual interest. However, the rest of the money suffered a 5% loss. If the total annual income from both investments was $2060, how much was invested at each rate?
How much money was invested at 12% annual interest? _$__?__
How much money way invested at a 5% loss? $___?__