TEAS 7 Math Practice Test

Correct Answer: B

Rationale: Correct Answer: B ($48,443) Rationale: To find the total price of Veronica's new car, add the base price ($40,210) to the cost of the surround sound system ($3,015) and the maintenance package ($5,218). Therefore, $40,210 + $3,015 + $5,218 = $48,443. Summary of other choices: A: $50,210 - Incorrect as it only includes the base price of the car. C: $43,225 - Incorrect as it only includes the base price and the maintenance package. D: $40,210 - Incorrect as it only includes the base price of the car.

Correct Answer: B

Rationale: To simplify the expression, we follow the order of operations (PEMDAS). Step 1: 7 + 16 = 23 Step 2: 6 * 3 = 18, then (5 + 18) = 23 Step 3: Now, the expression becomes 23 - 23 - 10 * 2 Step 4: 23 - 23 = 0, and 10 * 2 = 20 Step 5: Finally, 0 - 20 = -20 Therefore, the correct answer is B (-20). Explanation for other choices: A: -42 - Incorrect because it doesn't follow the correct order of operations. C: 23 - Incorrect, as it doesn't account for all the operations in the expression. D: 20 - Incorrect, as it doesn't consider the subtraction and multiplication operations properly.

Correct Answer: B

Rationale: To calculate a 20% decrease from 400 mg, we first find 20% of 400, which is 80 mg. Subtracting 80 mg from the current dosage of 400 mg gives us the new dosage after the decrease: 400 mg - 80 mg = 320 mg. Therefore, the correct answer is B (80 mg). Choices A, C, and D are incorrect as they do not accurately reflect a 20% decrease from the original 400 mg dosage.

Correct Answer: B

Rationale: The correct answer is B: 23%. To calculate this, we add up the percentages of the other three options (49% + 18% + 10% = 77%) and subtract it from 100% (100% - 77% = 23%). This gives us the percentage of funds donated to support construction costs. The rationale is that the sum of percentages of all options must add up to 100%. Choice A, C, and D are incorrect as they do not add up to 100% when combined, making B the correct answer.

Correct Answer: C

Rationale: To determine the correct dosage, multiply the patient's weight (60 kg) by the prescribed dosage (5 mg/kg): 60 kg x 5 mg/kg = 300 mg. Choice C is correct. Choices A, B, and D are incorrect as they do not result from the correct calculation. Choice A (100 mg) is too low, Choice B (150 mg) is also too low, and Choice D (400 mg) is too high based on the calculation.