Name ___________________________________________ Due date _____________________ Period ______ Math Boxes – Week 12 Directions: Complete each box below. In order to receive full credit, you must show all work. You may use additional paper if necessary. 1. 1. What is the value of the expression below? Express your answer as a fraction in simplest form. ( ) ( ) 2. Carmine paid an electrician x dollars per hour for a 5hour job plus $70 for parts. The total charge was $320. Which equation can be used to determine how much the electrician charged per hour? a. 5x = 320 + 70 b. 5x = 320 – 70 c. (70 + 5)x = 320 d. (70 – 5)x = 320 3. A pine tree measured 40.5 feet tall. Over the next 7.5 years, it grew to a height of 57 feet. During the 7.5 years, what was the average yearly growth rate of the height of the tree? Express your answer as a decimal. 5. Which expression represents the sum of 4. Evaluate. Express your answer as an improper fraction in simplest form. ( ) 6. Solve for x: (2x – 5y) and (x + y)? a. 3x – 4y b. 3x – 6y c. x – 4y d. x – 6y ( ) 7. Open Ended Response: An architect made a scale drawing on a grid of the front of an arch for a public park. a. What would the actual height of the arch be in feet? If necessary, express your answer as decimal. b. What would the actual width of the arch be in feet? If necessary, express your answer as a decimal. The architect planned to enlarge the arch for a project in another city. The larger arch was to be original. the size of the c. What would the new height of the arch be in feet? If necessary, express your answer as a decimal. d. What would the new width of the arch be in feet? If necessary, express your answer as a decimal.