# Class I Formula list

## Rate Formulas

price + tax = total
rate X time = wage
rate X value = tax
rate X price = tax
rate X time = yield
rate X time = distance
rate X time = effort
rate X (time1 + time2) = wage
rate1 X time1 + rate2 X time2 = wage
(percent/100) X wage = deductions
(right/total) X 100 = percent
value per unit X number of units = value
volume X solution percent = solvent

## Sum Formulas

price + tax = total
right + wrong = total
number of type one + number of type two = total number
rate one + rate two = combined rate
distance one + distance two = total distance
gross wage - deductions = net wage
true value - measured value = error
angle one + angle two + angle three = 180 degrees
(the sum of the interior angles of a triangle)
angle one + angle two = 90 degrees (complementary angles)
angle one + angle two = 180 degrees (suplementary angles)

Click for Relational Formulas.