Homework

Name ________________________________ Date ________________ 1. Solve for x and y using the graphing method of solution.   2. Solve for x and y using the substitution method of solution.   3. Solve for x and y using the linear combination method of solution.   4. A citrus fruit company plans to make 13.25 lb gift boxes of oranges and grapefruits. Each box is to have a retail value of $21.00. Each orange weighs 0.50 lb and has a retail value of $.75, while each grapefruit weighs 0.75 lb and has a retail value of $1.25. How many oranges and grapefruits should be included in the box?
 * Homework **

5. Extend one of the methods of solution so that a system of linear equations with 3 unknowns may be solved. Solve for x, y, and z. Justify your method selection.    