ATI TEAS 7
TEAS Test Practice Math Questions
Question 1 of 5
A lab technician took 500 milliliters of blood from a patient. The technician used 16.66% of the blood for further tests. How many milliliters of blood were used for further tests? Round your answer to the nearest hundredth.
Correct Answer: C
Rationale:
To find the amount of blood used for further tests, we multiply 500 mL by 0.1666 (equivalent to 16.66%). This calculation results in 83.3, which rounded to the nearest hundredth is 83.33.
Therefore, 83.33 milliliters of blood were used for further tests.
Choice A is incorrect as it does not consider rounding to the nearest hundredth.
Choices B and D are slightly off due to incorrect rounding.
Choice C is the correct answer after rounding to the nearest hundredth.
Question 2 of 5
Which of the following describes a real-world situation that could be modeled by?
Correct Answer: A
Rationale: In the given situation, Courtney charges a $12 fee plus $2 per hour to babysit, represented by the equation: 12 + 2h where h is the number of hours. Kendra charges a $10 fee plus $5 per hour, represented by the equation: 10 + 5h.
To find the number of hours for which the two charges are equal, we set the two equations equal to each other: 12 + 2h = 10 + 5h. Solving for h gives h = 2. This means that the charges are equal after 2 hours of babysitting.
Choice B is incorrect because the fee and hourly rates for Courtney and Kendra are reversed, leading to an incorrect equation.
Choices C and D are incorrect as they do not accurately represent the given scenario of fees and hourly rates for babysitting by Courtney and Kendra.
Question 3 of 5
A book has a width of 5 decimeters. What is the width of the book in centimeters?
Correct Answer: B
Rationale:
To convert decimeters to centimeters, you need to multiply by 10 since 1 decimeter is equal to 10 centimeters.
Therefore, to find the width of the book in centimeters, multiply 5 decimeters by 10: 5 decimeters * 10 = 50 centimeters. This means the width of the book is 50 centimeters, making choice B, "25 centimeters," the correct answer.
Choices A, C, and D are incorrect because they do not correctly convert decimeters to centimeters.
Question 4 of 5
Elijah drove 45 miles to his job in an hour and ten minutes in the morning. On the way home in the evening, however, the traffic was much heavier, and the same trip took an hour and a half. What was his average speed in miles per hour for the round trip?
Correct Answer: A
Rationale:
To find the average speed for the round trip, we calculate the total distance and total time traveled. The total distance for the round trip is 45 miles each way, so 45 miles * 2 = 90 miles. The total time taken for the morning trip is 1 hour and 10 minutes (1.17 hours), and for the evening trip is 1.5 hours.
Therefore, the total time for the round trip is 1.17 hours + 1.5 hours = 2.67 hours.
To find the average speed, we divide the total distance by the total time: 90 miles / 2.67 hours ≈ 33.7 miles per hour. The closest option is A, 30 miles per hour, making it the correct answer.
Choice B (45) is the total distance for the round trip, not the average speed.
Choices C (36) and D (40) are not derived from the correct calculations and do not represent the average speed for the round trip.
Question 5 of 5
Kyle has $950 in savings and wishes to donate one-fifth of it to 8 local charities. He estimates that he will donate around $30 to each charity. Which of the following correctly describes the reasonableness of his estimate?
Correct Answer: C
Rationale: Kyle initially had $950 in savings, and one-fifth of that amount would be $190. Since he wishes to donate around $30 to each charity, the total amount he would donate to 8 local charities would be $30 x 8 = $240. This amount is more than one-fifth of $1,000, making the estimate not reasonable.
Choice A is incorrect because $190 is the correct one-fifth of $950, not $900.
Choice B is incorrect as it compares $190 to a different amount ($1,000) rather than the actual total.
Choice D is incorrect as it states that $240 is one-fifth of $1,000, which is inaccurate.