## Solve joint variation problems

Solve joint variation problems   It is possible for one variable to depend on several others. If one variable varies directly as the product of several other variables (perhaps…

## Solve applied problems using linear inequalities

Solve applied problems using linear inequalities   In addition to the familiar “is less than” and “is greater than,” other expressions such as “is no more than” and “is at…

## Solve problems involving the angles of a triangle

Solve problems involving the angles of a triangle   An important result of Euclidean geometry (the geometry of the Greek mathematician Euclid) is that the sum of the angle measures…

## Solve problems about different denominations of Money

Solve problems about different denominations of Money   These problems are very similar to the simple interest problems   PROBLEM-SOLVING HINT   In problems involving money, use the fact that…

## Solve applied problems using formulas

Solve applied problems using formulas    The distance formula, d = rt, relates d, the distance traveled, r, the rate or speed, and t, the travel time.   Solve percent…

## Maximum–Minimum Problems

Maximum–Minimum Problems   We have seen that for any quadratic function f(x) = ax2 + bx + c, value of f(x) at the vertex is either a maximum or a…