Formulas (arithmetic) Flashcards
1
Q
Average =
A
Sum of Terms
Average = ——————-
# of Terms
2
Q
Rate (speed) =
A
Distance
Rate = ——————-
Time
3
Q
Time =
A
Distance
Time = ——————-
Rate
4
Q
Distance =
A
Distance = Rate x Time
5
Q
Average Speed =
A
Dist 1 + Dist 2
Avg Speed = —————-
Time 1 + Time 2
6
Q
Combined Work =
A
Rate A x Rate B
---------------- Rate A + Rate B
A & B are the respective rates of the people or machines together
7
Q
Percent % =
A
Part
% = ——————-
Whole
Percent %:
Represented in Decimal or Fraction
8
Q
%
Whole =
A
Part
Whole = ——————-
Percent
% Percent:
Represented in Decimal or Fraction
9
Q
%
Part =
A
Part = Percent x Whole
% Percent:
Represented in Decimal or Fraction
10
Q
Percent Change =
A
Amount of Change
—————— x 100
Original Amount
