Math Practice TEAS Test

Correct Answer: C

Rationale: A rational number can be expressed as a fraction or a decimal. A fraction is a ratio of two integers, and a decimal can represent a rational number, such as 0.5 (which is 1/2). Hence, a rational number can be a fraction, decimal, or a whole number. Options A and D are incorrect because a rational number is not limited to being a whole number or cannot be a decimal. Option B is partially correct but doesn't cover the full scope of possibilities for rational numbers. Option C is the correct answer as it encompasses all the possible representations of a rational number.

Correct Answer: B

Rationale: To calculate the probability of consecutively pulling two more orange blocks, we first find the probability of pulling one orange block (3/12) and then the probability of pulling another orange block out of the remaining orange blocks (2/11). Multiplying these probabilities gives (3/12) * (2/11) = 6/132 = 3/55. Therefore, the correct answer is B. Choice A (3/12) is the probability of pulling one orange block, but it doesn't account for the second draw. Choice C (2/10) is incorrect as it doesn't consider the changing probabilities after the first draw. Choice D (1/3) is the probability of pulling one orange block only.

Correct Answer: B

Rationale: To calculate a 30% decrease, you multiply the current dosage (340 mg) by 0.30 to find the decrease amount: 340 mg x 0.30 = 102 mg. Subtract the decrease from the current dosage to get the new dosage: 340 mg - 102 mg = 238 mg (Option B). Option A (70 mg) is incorrect as it represents a 79% decrease. Option C (270 mg) is incorrect as it does not account for the 30% decrease. Option D (340 mg) is incorrect as it does not reflect the required decrease.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Sum of two odd numbers is always even (odd + odd = even). 2. Sum of two even numbers is always even (even + even = even). 3. Sum of an odd number and an even number is always odd (odd + even = odd). Therefore, the sum of two odd numbers, two even numbers, an odd number, and an even number would be Even + Even + Odd + Odd = Even. Summary: Choice A is correct as it follows the rules of adding odd and even numbers. Choices B, C, and D are incorrect as they incorrectly state the outcomes of adding odd and even numbers.

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.