Math Practice TEAS Test

Correct Answer: A

Rationale: The correct answer is A: PEMDAS. PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction, which is the order of operations in mathematics. By following PEMDAS, you ensure the correct sequence of operations and accurate results in mathematical calculations. Using PEMDAS prevents errors and ambiguity in expressions. It is essential to always use PEMDAS to maintain consistency and accuracy in mathematical computations. Summary of other choices: B: Variables are used in algebra to represent unknown quantities, but they are not always required in all math. C: Conversion factors are used in unit conversions, but they are not universally necessary in all math situations. D: Estimation is a useful skill in math for approximating results but is not a fundamental requirement in all mathematical operations.

Correct Answer: B

Rationale: To find the total shifts for week 3, we add the shifts from each week. Cameron worked 5 shifts in week 1, 2 * 5 = 10 shifts in week 2, and added 4 more shifts in week 3. Thus, total shifts = 5 (week 1) + 10 (week 2) + 4 (week 3) = 19 shifts. Therefore, the correct answer is B: 14 shifts, as it correctly calculates the shifts for each week and provides the accurate total for week 3. Other choices are incorrect because they do not consider the shifts worked in week 2 or incorrectly calculate the total shifts for week 3.

Correct Answer: A

Rationale: To find the percentage of students with hazel or green eyes, add the number of students with hazel and green eyes (5+2=7). Then, divide this sum by the total number of students (7/30). Finally, multiply the result by 100 to convert it to a percentage (7/30 * 100 = 23%). Therefore, the correct answer is A (0.23). Choice B (0.3) is incorrect as it is not the accurate percentage of students with hazel or green eyes. Choice C (0.47) and choice D (0.77) are also incorrect as they do not represent the correct calculation of the percentage based on the given information.

Correct Answer: A

Rationale: The correct answer is A: 1328.35. To calculate the total cost, we first add up the costs of airfare, hotel (5 nights), sightseeing, and meals. Next, we calculate the cost of additional hotel nights after the 10% discount. Finally, we sum up all the costs to get the total amount Margery will spend. The other choices are incorrect because they do not follow the correct calculation process or include the discount on additional hotel nights.

Correct Answer: B

Rationale: To convert liters to quarts, we use the conversion factor 1 liter = 1.06 quarts. Therefore, 1 liter is equal to 1.06 quarts. The correct answer is B. Choice A is incorrect as it states 1 quart is equal to 1 liter. Choice C is incorrect as it states 2 quarts are in 1 liter. Choice D is incorrect as it states 0.5 quarts are in 1 liter.