Exercises Directions: Answer each of the following questions using Substitution, Elimination or Graphical Method. Show your complete solutions. (5 points each)
1. The Mathematics Club of INHS organized a Math Camp to raise fund for the victims of Taal Volcano Eruption. The prices of each ticket for the camp is ₱35 for non-Math Club members and ₱30 for Math Club members. They are able to sell 515 tickets in all and a total fund of ₱16,715. How many tickets of each kind were sold?
2. Lisa sells two brands of Tablet PC, Xpress Tab and YeoboPC. She receives a commission of 12% on brand Xpress Tab and 8% on brand YeoboPC. If she is able to sell two Tablet PC’s, one for each brand, the total cost is ₱42,000 and the amount that she will receive as commission is ₱4,400.
a. What is the cost of each brand of Tablet PCs?
b. How much commission does she receive on brand Xpress Tab? How about on
YeoboPC brand?
c. Suppose you are Lisa and you wish to earn more. Which Tablet PC will you suggest
your customers or clients to buy? Why?
3. Rose is doing her science laboratory experiment. She needs to make 200 milliliters of a 40% solution of sulfuric acid for a lab experiment. The lab has only 25% and 50% solutions in the storeroom. How much should she mix of the 25% and the 50% solutions to make the 40% solution.