Ch. 3 Flashcards
0
Q
Proportion
A
An equation that says that 2 ratios are equal
1
Q
Ratio
A
Comparisons of 2 quantities usually expressed as a fraction
2
Q
Simple interest
A
I=prt I=amount of interest p=principal r=rate (%) t=time (in years)
3
Q
To go from discount to sales price
A
Original-discount=sales price
4
Q
To go from markup to final price
A
Original+markup=final price
5
Q
To go from sales tax to final price
A
Original+sales tax=final price
6
Q
Percent of increase/decrease
A
Difference/original=x/100
