Word Problems Flashcards
1
Q
Distance, Rate, Time
A
distance = rate x time, r = d/t, t = d/r
2
Q
Average Speed
A
Avg. speed = total distance traveled/total time
3
Q
Work Rate
A
1/TotalWork = 1/(Work Rate 1) + 1/(Work Rate 2); output = rate x time
4
Q
Sequences
A
1 + 2 + 3 + … + n = (n(n + 1))/2
5
Q
Simple Interest
A
V = P(1 + (r x t)/100) where V is value of investment, P is principal, r is rate, and t is time
6
Q
Compound Interest
A
V = P(1 + r/(100n))^nt where V is value of investment, P is principal, r is rate, t is time, n is the number of times compounded per year
