MTH 120 - Formula Sheet - x(1 Tip Rate Simple Interest...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Formula Sheet Discount Formulas D = P · M or Discount = Original Price x Markdown S = P – D or Sale Price = Original Price – Discount C = 1 – M or Complement of Markdown = 1 – Markdown S = P · (1 – M) or Sale Price = Original Price x (1 – Markdown) S = P · C or Sale Price = Original Price x Complement of Markdown P = S / (1 – M) or Original Price = Sale Price / (1 – Markdown) P = S / C or Original Price = Sale Price / Complement of Markdown Sales Tax Formulas Sales Tax = Original Price x Tax Rate Total Cost = Original Price + Sales Tax Total Cost = Original Price x (1 + Tax Rate) Tip Formulas Tip = Price of Meal x Tip Rate Total Cost of Meal = Price of Meal + Price of Meal x Tip Rate Total Cost of Meal = Price of Meal
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: x (1 + Tip Rate) Simple Interest Formulas I = Prt or Interest = Present Value (or Principal) x Interest Rate x Time Future Value = Present Value (or Principal) + Interest Future Value = Present Value (or Principal) x (1 + Interest Rate x Time) Compound Interest Formulas Future Value = Present Value x (1 + r/n) nt Future Value = Present Value x (1 + i) N , where N = n · t or Number of periods = Number of periods per year x Number of years i = r / n or Periodic interest rate = Annual interest rate / Number of periods per year Annual Percentage Rate APR = 1 2 + N Nr Mortgage Formulas Comparison Rate = APR + 0.125(Points + Loan of Amount Fee n Originatio ) Entry II Table 000 , 1 Loan of Amount Payment Monthly × =...
View Full Document

This note was uploaded on 02/29/2012 for the course MATH 120 taught by Professor Adjunct during the Fall '11 term at Northern Virginia Community College.

Ask a homework question - tutors are online