TEAS Test Practice Math

Correct Answer: B

Rationale: To calculate 80% of 30 questions, multiply 30 by 0.80, which equals 24. Joshua needs to answer at least 24 questions correctly to meet the 80% threshold for the scholarship. Therefore, the correct answer is B. Choice A (23) is incorrect because it falls short of 80% of 30 questions. Choices C (26) and D (27) exceed the minimum requirement, making them unnecessary.

Correct Answer: B

Rationale: To convert decimeters to centimeters, we multiply by 10 since 1 decimeter is equal to 10 centimeters. Therefore, for a book with a width of 5 decimeters, the width in centimeters would be 5 * 10 = 50 centimeters. This makes choice B, 25 centimeters, the correct answer. Choices A, C, and D are incorrect because they do not correctly apply the conversion factor from decimeters to centimeters. Choice A is too small, choice C is too large, and choice D is also too small due to incorrect decimal placement.

Correct Answer: B

Rationale: To find the least number of computers to be shipped and sold for the amount received to be equal to shipping cost, we set the selling amount equal to the shipping cost: 400x = 3000 + 100x Solving for x, we get x = 15. Therefore, the correct answer is B. Choice A (10) is too low as it results in less revenue than the shipping cost. Choices C (20) and D (25) are higher than the minimum required number of 15 computers, resulting in more revenue than needed.

Correct Answer: B

Rationale: Veronica's total expenses for the surround sound system and maintenance package are $3,015 + $5,218 = $8,233. To find the total price of her new car, we need to add this amount to the original price of the car. Since the correct answer is $48,443, the calculation would be $48,443 (total price) - $8,233 (additional expenses) = $40,210 (original price of the car). Therefore, option B is correct. Option A is higher because it doesn't subtract the additional expenses. Option C and D are lower because they don't account for the additional expenses at all.

Correct Answer: A

Rationale: To find the number of hours for which Courtney and Kendra's charges are equal, we need to set their equations equal to each other. For Courtney: Cost = $12 + $2x, where x is the number of hours. For Kendra: Cost = $10 + $5x. Setting the two equations equal: $12 + $2x = $10 + $5x. Solving for x gives x = 2. This means after 2 hours, both charges are equal. Option A is correct as it correctly represents the situation. Option B has the fee and hourly rates swapped for Courtney and Kendra. Option C has the hourly rates incorrectly applied to the fee. Option D has the fees and hourly rates swapped for Courtney and Kendra.