SYSTEM of THREE-EQUATION
TRAVEL PACKAGE (USING VENN-DIAGRAMS)
Liberty Travel surveyed 125 potential customers. The following information was obtained.
68 wished to travel to Hawaii.
53 wished to travel to Las Vegas.
47 wished to travel to Disney World.
34 wished to travel to Hawaii and Las Vegas.
26 wished to travel to Las Vegas and Disney World.
23 wished to travel to Hawaii and Disney World.
18 wished to travel to all three destinations.
Use a Venn diagram to answer the following questions. How many of those surveyed a) did not wish to travel to any of these destinations?
b) wished to travel only to Hawaii?
c) wished to travel to Disney World and Las Vegas, but not to Hawaii?
d) wished to travel to Disney World or Las Vegas, but not to Hawaii?
e) wished to travel to exactly one of these destinations?
SAVING FOR COLLEGE
Mr. Hernandez would like his daughter to attend college in 6 years when she finishes high school. He would like to invest enough money in a certificate of deposit (CD) now to pay for his daughter’s college expenses. If Mr. Hernandez estimates that he will need $30,000 in 6 years, how much should he invest now in a CD that has a rate of 2.5% compounded quarterly? Help Mr. Hernandez !
SOLVING FORMULA IN REAL-LIFE