These web-based activities were developed, during summer sessions from 1997 through 1999, by students at Mainland High School, located in Daytona Beach, FL. As part of Mainland's CCTT grant, the students were given permission by the book's publisher to convert the ancillary materials of the County's adopted Algebra 1 textbook (Glencoe Algebra 1 − ISBN: 9780028253282) into html format.

Solving Inequalities Using +/−

Solve each inequality and then check your solution.

Define a variable, write an inequality, and solve each problem. Then check your solution.   19. A number decreased by 10 is greater than −5.   20. A number increased by 2 is at most 6.   21. A number increased by −1 is less than 10.   22. A number decreased by −4 is at least 9.

Copyright 1997-1999: html adaptation
Career Connection to Teaching with Technology