Formulas and equations
Substitute into formulas, solve distance-speed-time problems, apply BAC and medication formulas, and change the subject.
Number · MST-11-01
Sub-topics
Substituting into formulas
Substitute given values into linear and non-linear formulas to evaluate the subject, expressing results to appropriate precision with correct units.
Distance, speed and time
Apply the formula D = ST to find distance, speed or time; solve multi-leg journey problems to find average speed; and substitute into stopping distance formulas to interpret and compare results.
BAC and medication formulas
Substitute into the blood alcohol content (BAC) formula for males and females; apply Fried's rule and Young's rule to calculate appropriate medication doses for children; determine whether a BAC is below the legal driving limit and find how long to wait before driving.
Changing the subject
Rearrange linear and non-linear formulas to change the subject, then substitute values to solve practical problems.