Page 94 - Algebra 1

21. Verify Convert 2.35 pounds to ounces (1 lb = 16 oz). Check to see if your answer (8) is reasonable.
22. Write If a computer program is designed to run until it reaches the end of the (1) number pi (π), will the program ever end? Explain.
23. Geography The lowest point in elevation in the United States is Death Valley,
(1) California. Death Valley is 86 meters below sea level. Which set of numbers best
describes elevations in Death Valley?
24. Temperature To convert degrees Celsius to degrees Fahrenheit, use the
(2) equation C = _5 (F – 32).
9 _5
a. How many terms are in the expression 9 (F – 32)? b. Identify the constants in the expression.
25. Simplify -7 + 3 - 2 - 5 + (-6). (6)
26. Error Analysis Ms. Mahoney, the algebra teacher, has two cakes that weigh 3 pounds (4) and 5 pounds. She cuts the cakes into 16 equal pieces. She asks the students to
write an expression that represents the weight of each piece. Which student is correct? Explain the error.
27. Model While the Petersen family was waiting for their table, 9 people left the
(5) restaurant and 15 people entered. Find the sum of -9 and 15 to determine the
change in the number of people in the restaurant. Use algebra tiles to model the situation.
28. Justify Simplify 22 - (-11) - 11 - (-22). Justify your answer. (6)
29. Write Why is the order of operations important when simplifying an expression (7) like (5 + 7)2 ÷ (14 - 2)?
*30. Landscaping Tanisha is building a fence around a square flower bed that has an (13) area of 144 square feet. How many feet of fencing does she need?
Student B
uses the expression (3 + 5) ÷16
Student A
uses the expression 3 + 5 ÷16
x ft
x ft
x ft
x ft
Area = 144 sq. ft
Lesson 14 79