Blog

Suppose that the number of people infected with COVID-19 in a certain country has been doubling every week, and there are 6,400 infected people today. When were there only 100 infected people in that country?

An airline reservation code consists of two alphabet letters followed by 3 digits. For example, “TL307” is a valid code, and so is “LL222.” Clearly, repetition is allowed. Assume that all 26 letters of the English alphabet are available, how many valid codes are possible?  Write ONLY your answer in the response box. Show your work which justifies your answer ON YOUR PAPER.  

In compound interest, the dollar amount of interest stays the same year after year. 

The Fibonacci sequence starts with 1, 1, 2, 3… and contains the number 19. 

If an election is held with exactly three candidates, then there may not be a Condorcet winner.

Which method of election uses a point system, i.e., 5 points for each 1st-place ballot, 4 points for each 2nd place ballot, etc.?

Use Jefferson’s Method to determine how many nurses should be assigned to each office as shown below. There are 20 nurses available in total. Use the modified divisor . Write ONLY your answers (the right-hand column) in the response box. Show your work which justifies your answer ON YOUR PAPER. You should copy and complete this entire table on your own paper. Office Residents Quota Nurses Newhall 31,600 Saugus 43,000 Valencia 65,400 Total 140,000  

A health-care provider has three offices: Newhall, Saugus, and Valencia. The number of residents each office serves is shown below. There are 20 nurses available in total. Using Hamilton’s Method, determine how many nurses should be assigned to each office.  Write ONLY your answers (the right-hand column) in the response box. Show your work which justifies your answer ON YOUR PAPER. You should copy and complete this entire table on your own paper. Office Residents Quota Min. Q. Remainder Nurses Newhall 31,600 Saugus 43,000 Valencia 65,400 Total 140,000  

The Fibonacci sequence starts with 1, 1, 2, 3… and contains the number 21. 

A magnitude 5.2 earthquake (on the Richter scale) releases 10 times as much energy as a magnitude 4.2 earthquake.