ATI TEAS 7
ATI TEAS Math Practice Test Questions
Question 1 of 5
In a research study, a researcher collects data on the number of hours spent studying and the grades students received. Which of the following is the dependent variable?
Correct Answer: B
Rationale: The correct answer is B: 'The grades students received.' In this scenario, the grades students received are the dependent variable because they are influenced by the number of hours spent studying. The grades are the outcome that is being measured based on the manipulation or observation of the independent variable, which in this case is the number of hours spent studying.
Choices A, C, and D are incorrect. The number of hours spent studying is the independent variable being manipulated or observed, the subjects students studied is not directly related to the dependent variable, and the number of students in the study is not the variable being measured or influenced by the independent variable.
Question 2 of 5
Solve for y: 2y + 5 = 25 * 10
Correct Answer: B
Rationale:
To solve the equation 2y + 5 = 25 * 10, start by simplifying the right side: 25 * 10 = 250.
Then, subtract 5 from both sides to isolate 2y: 2y = 250 - 5 = 245. Finally, divide by 2 to find the value of y: y = 245 / 2 = 122.5.
Therefore, the correct answer is y = 122.5.
Choices A, C, and D are incorrect as they do not result from the correct calculation steps.
Question 3 of 5
Approximately what percentage more staff members at Hospital Y are female than at Hospital X?
Correct Answer: B
Rationale:
To find the percentage more staff members at Hospital Y are female than at Hospital X, we first calculate the percentage of female staff members at each hospital. For Hospital Y: (90 / 183) x 100 ≈ 49.2%. For Hospital X: (97 / 250) x 100 ≈ 38.8%. The difference between these percentages is approximately 10%, making choice B the correct answer.
Choice A, 5%, is too low as the difference is greater.
Choice C, 15%, and choice D, 20%, are both too high as the actual difference is closer to 10%.
Question 4 of 5
There are 80 mg in 0.8 mL of Acetaminophen Concentrated Infant Drops. If the proper dosage for a four-year-old child is 240 mg, how many milliliters should the child receive?
Correct Answer: C
Rationale:
To find out how many milliliters the child should receive, divide the total required dosage of 240 mg by the concentration of the medication, which is 80 mg per 0.8 mL. 240 mg · 80 mg/mL = 3 mL. Since each dose is 0.8 mL, the total dosage for the child would be 3 doses x 0.8 mL per dose = 2.4 mL.
Therefore, the correct answer is 2.4 mL.
Choice A (0.8 mL) is the concentration of the medication, not the total dose.
Choices B (1.6 mL) and D (3.2 mL) are incorrect calculations that do not consider the concentration of the medication and the total required dosage correctly.
Question 5 of 5
A book has a width of 2.5 decimeters. What is the width of the book in centimeters?
Correct Answer: B
Rationale:
To convert decimeters to centimeters, we use the conversion factor that 1 decimeter is equal to 10 centimeters. Setting up the proportion: 1/0.1 = x/2.5. Solving for x gives 2.5 = 0.1x, x = 25.
Therefore, the width of the book in centimeters is 25.
Choices A, C, and D are incorrect because they do not correctly convert decimeters to centimeters. A and D have decimal placement errors, and C has an incorrect magnitude of centimeters.