# Final Exam

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1. Percent as fraction
"percenatge of"
• part/total = %
• % * total = part
• part/% = total
2. Absolute change
• New- old
• if given in percents units for absolute change are percentage points
3. Percent change
new-old/old
4. Absolute and Relative difference
• not absolute change
• percentage more than; percentage less than
• larger-smaller/the quantity after "than"
5. Increasing or decreasing by a percent
• # * (1 + .%) = Pecent increase
• # * (1 - .%)= Percent decrease
6. Successive percentage change
• multiple increases or decreases in percent
• org # * (1 +or- .%) = X
• X * (1 +or- .%) =Y
• continue as needed
7. Solve for Original
• Finding original # that has been reduced = new/(1-.%)
• Finding original # that has been increased = new/(1+.%)
8. Ratios
1st #/ 2nd #
9. Ratios
percent more or less than
• Assuming A=5; B=4
• A is what percent more than B =25% more
• B is what percent less than A =20% less
10. Ratios
percent of
• Assuming A=5; B=4
• A is what percent of B = 125%
• B is what percent of A = 80%
11. Rate per 10,000
Example death rates of hunting

• 600 deaths/2000000 hunters = .0003
• .0003*10,000 = 3
• 3 deaths per 10,000 participants
12. Linear Equation?
• y = mx + b
• where m=slope or rate of change
• b= y intercept or inital value
• yintercept or inital value= y value when x equals 0
13. Rate of change formula?
B2-B1/A2-A1
14. Exponential Formula?
• y = P*(1+or-r)^x
• Where P = inital value(value of y when x = 0)
• r = percent change (in decimal form)
• x = independent variable (usually time)
• y = dependent variable
15. Exponential relationship?
For an increase of 1 in x, y increases or decreases by a constant percent change.
16. Linear relationship?
as the x variable increases by 1, the y variable increases or decreases by a certain amount (rate of change)
17. Finding ratio of CPI?
new years CPI/old years CPI = CPI ratio
18. Converting to constant dollars?
X dollars in old year is worth how much in new year constant dollars
new year CPI/ old year CPI * X dollars = X dollars in new year constant dollars
19. Annual Inflation rate?
• Percentage change in the CPI in one year from previous year
• for example
• 1996 CPI-1995CPI/1995 CPI = Inflation rate

162.6-157.9/157.9 = 3.0% inflation rate for 1996
20. Finding monthly payments using excel?
• fx icon in formula bar
• drop down menu > finacial > PMT > box appears
• Enter rate = APR (as a decimal) divided by 12
• Enter NPer (total # of payments)= # of years *12
• Enter Pv (principal) = amount of loan as negative # no commas
21. Absolute cell reference?
used to lock in a cell reference in a formula when working on tables so that as formula moves down the table it still refers to correct cell.

enter cell reference than hit F4 button
 Author: ametzga ID: 174205 Card Set: Final Exam Updated: 2013-03-07 00:45:27 Tags: Quantitative literacy Folders: Description: Final Exam Show Answers: