Evaluate the expression when = 3, = , and = 12. x y z 29. + yz 37. The temperature at 6:00 P.M. was 15°C The temperature dropped 2°C per hour. What was the temperature at 4:00 A.M.? Write the rational number as a decimal. 30. 38. A board is feet long. You cut off a -foot piece and a -foot piece. How much of the original board is left? Write the decimal as a fraction or mixed number in simplest form. 31. 0.35 32. 3.75 – Solve the equation. 39. 4 = 10 m – Simplify the expression. 33. 40. (–2) = 6 w – 34. 41. 3 = k – –9 35. 42. 36. 43.
Evaluate the expression when x = 3, y = , and z = 12. 29. + yz Write the rational number as a decimal. 30. Write the decimal as a fraction or mixed number in simplest form. 31. 0.35 32. – 3.75 Simplify the expression. 33. 34. 35. 36. 37. The temperature at 6:00 P.M. was 15°C The temperature dropped 2°C per hour. What was the temperature at 4:00 A.M.? 38. A board is feet long. You cut off a -foot piece and a -foot piece. How much of the original board is left? Solve the equation. 39. m – 4 = 10 40. w – (–2) = 6 41. k – 3 = –9 42. 43.