Exam 1: Solving Linear Equations and Inequalities

Solve the problem. -The area of a trapezoid of height h, small base b, and large base B is given by . Find the area of a trapezoid whose height is 8 m, small base is 13 m, and large base is 15 m.

Solve using the addition and multiplication principles together. -15(5c - 7)= 9c - 9

Write interval notation. -

Solve using the multiplication principle. -

Solve. -

Find the indicated intersection or union. -

Solve and graph. -

Solve. -If Gloria received a 3 percent raise and is now making $24,720 a year, what was her salary before the raise?

Solve. -Suppose the sales of a particular brand of appliance satisfy the relationship S = 170x + 2300, where S represents the number of appliances sold in year x, with x = 0 corresponding to 1982. Find the number of appliances sold In 1997.

Solve using the addition and multiplication principles together. -7x - (2x - 1)= 2

Solve. -

Solve and graph. Write the result in interval notation. -

Write interval notation for the graph. -

Solve and graph. -

Solve using the addition and multiplication principles together. -

Solve. -

Choose the number that is a solution of the inequality. --8n + 11 ≤-9n + 10

Solve and graph. -

Solve and graph. -

Solve. -Stevie bought a stereo for $300 and put it on sale at his store at a 65% markup rate. What was the retail price of the stereo?