Practice Math TEAS TEST

Correct Answer: A

Rationale: The correct answer is A because it describes a scenario with no correlation between two variables. In this case, as class attendance decreases, the overall grade remains the same, indicating that there is no relationship between attendance and grade. This lack of change in grade despite attendance levels demonstrates no correlation between the variables. Choice B is incorrect because it shows a negative correlation between exercise hours and weight gain. Choice C is incorrect as it represents a negative correlation between miles driven and gasoline in the tank. Choice D is incorrect as it illustrates a positive correlation between water intake and plant growth rate.

Correct Answer: A

Rationale: The correct answer is A: 3x-12. To express 'Twelve less than thrice a number,' we first represent 'a number' as x. Then 'thrice a number' is 3x. Finally, 'Twelve less than thrice a number' translates to 3x-12. Other choices are incorrect because they do not accurately represent the given expression. Choice B (12-3x) reverses the order of operations, choice C (3-12x) incorrectly multiplies instead of subtracting, and choice D (12x-3) mistakenly subtracts the number from 12 instead of subtracting 12 from the number multiplied by 3.

Correct Answer: D

Rationale: To find the answer, calculate the volume of the room: 9 ft * 9 ft * 9 ft = 729 cubic feet. Then, calculate the volume of one box: 2 ft * 2 ft * 2 ft = 8 cubic feet. Divide the room's volume by the box's volume: 729 cubic feet / 8 cubic feet = 91.125. Since we can't have a fraction of a box, the maximum number of whole boxes that can be stored is 91, which is closest to option D: 92. Option A (125) is too high, option B (64) is too low, and option C (18) is also too low.

Correct Answer: D

Rationale: To find the portion each of the other three friends received, we first calculate what fraction of the pizza was left after one friend ate half. Half of the pizza is 1/2, so 1 - 1/2 = 1/2 is left. Then, we divide 1/2 equally among the three friends, giving each 1/2 ÷ 3 = 1/6. Therefore, each of the other three friends received 1/6 of the pizza. Summary: A: 1/5 - Incorrect. Not the correct division after one friend ate half. B: 1/3 - Incorrect. The correct division is not one-third after one friend ate half. C: 1/4 - Incorrect. The correct division is not one-fourth after one friend ate half.

Correct Answer: A

Rationale: The correct answer is A: 9.0 inches. To calculate the total rainfall for May, June, and July, we add up the rainfall values for these months on the graph. May has 3 inches, June has 2.5 inches, and July has 3.5 inches. Adding these values together gives us 3 + 2.5 + 3.5 = 9.0 inches. Therefore, the correct total rainfall for these months is 9.0 inches. Choice B (8.4 inches) is incorrect because it does not match the sum of the rainfall values for May, June, and July. Choice C (7.5 inches) is also incorrect as it is lower than the actual total. Choice D (10.5 inches) is incorrect as it is higher than the actual total calculated from the graph.