Percents and Ratios Flashcards
1
Q
0.03%=
A
0.03/100
2
Q
0.68=
A
68%
3
Q
3/8
A
0.375
4
Q
Estimating percents
A
Try to get the denominator to 0
5
Q
Compound interest
A
Interest on interest; the multiplier is the same; after one year= simple interest= compound interest; compound interest grows fast
6
Q
CI
A
P[(1+R/100)]^y; quarterly then r/4 and t*4; n=number of times you will compound in year; slightly more than simple interest when calculated annually
7
Q
Different groups ratios
A
Scale all so you have the three numbers that can be equated to one another
8
Q
If you are not given any absolute info
A
You cannot find any absolute info; you can find something if you have even a little bit of info
