Formulas Flashcards
1
Q
Proportion to find percent
A
a/b = p/100
is/of = p/100
2
Q
wholesale price info
A
Retail price=wholesale price + markup(amt)
3
Q
sale price info
A
Sale price = original price - discount(amt)
4
Q
food info
A
Total = food bill + sales tax(amt) + tip(amt)
sales tax and tip as decimal
5
Q
Interest
A
I=Prt
Interest= principal (annual interest rate) (time in years)
6
Q
Account Balance
A
A = P + Prt or
A = P(1 + rt)
